Regex dengan grep - Kuliah Online 16

KULIAH ONLINE 16
Pemateri: akang Kurniadi Engkur (trainer lama #ubuntu-indonesia)
Materi: Regex dengan GREP
Waktu: 6 Maret 2014 20.30
Tempat: #ubuntu-indonesia @ freenode
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[20:31:18] <engkur> <<<<<<========================= kuliah online "i/o redirect in bash & simple regex dengan grep" =====================>>>>>>>
[20:31:23] <engkur> ok kita mulai aja
[20:31:42] <engkur> btw... udah pada duduk...
[20:31:54] <engkur> cari tempat, jangan pada ribut, jangan maenan kapur
[20:31:56] <masdio> Udah, pak dose.
[20:32:05] <masdio> eh, Pak Dos.
[20:32:10] <masdio> oke
[20:32:19] <goOpenSource> buat kopi dulu  gan :)
[20:32:21] <engkur> yang di belakang jangan maenan hp mulu, chating mulu
[20:32:31] <crazy_user> hehe, tau aja pak
[20:32:34] <masdio> JIah, main cewe boleh?
[20:33:01] <engkur> kalo udah legal boleh
[20:33:08] <engkur> ok ...
[20:33:10] <masdio> Wkwkwk...
[20:33:11] <engkur> intro duu
[20:33:15] <masdio> Oke
[20:33:20] <niskarto> sep
[20:33:33] <engkur> sesi 1 i/o redirection in bash
[20:33:44] <engkur> i/o = input & output
[20:33:57] <engkur> bash = shell default nya di linux
[20:34:20] <engkur> kemungkinan besar bisa di pake di unix-like yang laen
[20:34:22] <masdio> zsh boleh pak?
[20:34:40] <engkur> solaris, freebsd, mac,
[20:35:05] <engkur> kemungkinan besar sama aja di shell yang laen, sh, zsh, tcsh, ksh...
[20:35:20] <engkur> tapi di linux default nya bash...
[20:35:26] <masdio> Oke pak, lanjut.
[20:35:27] <engkur> ok
[20:35:42] <engkur> semua command di linux forat nya kayak begini
[20:35:56] <engkur> command STDIN STDOUT STDERR
[20:36:22] <engkur> command = ls, cp, mv, touch, grep....
[20:36:58] <engkur> STDIN = standard input, artinya command ini memerlukan input, biasanya dari keyboard, atau dari file
[20:37:11] <engkur> atau dari hasil command yang laen
[20:37:37] <engkur> STOUT = ini hasil output, dari command tesb
[20:38:40] <engkur> STDERR = standar error, kalo command nya error, misalnya argumen nya salah, input nya salah
[20:38:48] <engkur> akan keluar STDERR
[20:39:10] <engkur> btw command juga biasanya ada argumen, atau option
[20:39:17] <engkur> kyak
[20:39:23] <engkur> ls -l -s
[20:39:35] <engkur> -l & -s ini argumen bukan stdin
[20:39:58] <engkur> ok...
[20:40:11] <engkur> kalo mau tanya entar akan di buka sesi bertanya
[20:40:20] <masdio> Oke, temen saya ada yang kesulitan masuk channel sini.
[20:40:30] <bud_> siapa pematerinya nih ?
[20:40:54] <engkur> by default STDIN dari keyboard
[20:40:57] <josss> haa?
[20:41:01] <engkur> STDOUT = ke konsol
[20:41:08] <engkur> STERR = ke konsol juga
[20:41:15] <engkur> ok contoh...
[20:41:36] <engkur> yang mau ngikutin praktek...
[20:41:42] <engkur> silahkan buka command linuyax n
[20:41:47] <engkur> dan coba ikutin
[20:41:57] <sandika> sip
[20:41:58] <engkur> gampang kok, cuma maenan command dikit aja
[20:42:05] <josss> pakainya windows kang bukan linux wkkw
[20:42:13] <abraoximenes> ini lagi ngobrol soal apa nih ? :D
[20:42:20] <sandika> materinya tentang apa ?
[20:42:33] <Denis_> nyimak
[20:42:38] <showcheap> Ping
[20:42:43] <engkur> sory yang pake windows... hmmm cooba elo bikin virtual mesin linux
[20:42:48] <engkur> atau ssh ke server linux
[20:42:57] <engkur> atau pinjem aja dulu pc yag pake linux
[20:43:12] <engkur> engkur@mynotebook:~$ ls
[20:43:12] <engkur> 25Assist                          git            steam.desktop
[20:43:12] <engkur> adt-bundle-linux-x86_64-20131030  islami         storybook
[20:43:14] <sandika> materinya tentang apa ?
[20:43:17] <engkur> ini di pc aku....
[20:43:30] <ully> ane pakek windows gak papa kan??
[20:43:32] <masdio> regex bodrex setiap saat
[20:43:48] <Rifqi> ini udah mulai yah :D
[20:43:49] <engkur> btw
[20:44:00] <engkur> STDIN enggak selalu di perlukan command
[20:44:05] <engkur> jadi kayak ls
[20:44:11] <engkur> gak perlu STDIN
[20:44:32] <engkur> ok ini contoh STDERR
[20:44:46] <engkur> engkur@mynotebook:~$ ls gue
[20:44:47] <engkur> ls: cannot access gue: No such file or directory
[20:44:47] <engkur> engkur@mynotebook:~$
[20:45:00] <engkur> kenapa keluar error gitu
[20:45:12] <masdio> 0_tmp_delphi-unicode-migration.pdf
[20:45:13] <masdio> 4bd9590ae472f8fbee78f07744851a50.flv
[20:45:13] <masdio> Archive.zip
[20:45:13] <masdio> bitnami-wampstack-5.4.25-1-windows-installer.exe
[20:45:13] <masdio> copy of bitnami-wampstack-5.4.25-1-windows-installer.exe
[20:45:13] <masdio> copy of download.html
[20:45:14] <masdio> copy of indy10.0.52_source.zip
[20:45:19] <masdio> delphi-unicode-migration.pdf
[20:45:21] <masdio> demo10.zip
[20:45:22] <masdio> Desktop
[20:45:23] <engkur> itu karena dir gue, atau file gue gak ada di sini
[20:45:27] <masdio> Disk Image of sdb (2014-03-04 1504).iso
[20:45:28] <masdio> djs0
[20:45:30] <masdio> djs1
[20:45:32] <masdio> djs2
[20:45:35] <masdio> djs3
[20:45:36] <masdio> Documents
[20:45:38] <masdio> download.html
[20:45:42] <masdio> Downloads
[20:45:44] <masdio> examples.desktop
[20:45:45] <hatoblack> Woi...jgn ngeflood
[20:45:47] <engkur> jadi masdio eh copas nya jangan banyak banyak
[20:45:49] <masdio> f36bfaead1d9f6588b34e142428d4f06.flv
[20:45:50] <masdio> file-download-using-indy-10-with-lazarus-with-progress-bar.pdf
[20:45:52] <masdio> GTA San Andreas User Files
[20:45:53] <sandi> maaf untuk admin ini membahas tentang apa kemudian pakai linux apa?
[20:45:57] <masdio> Oke, oke,
[20:46:20] <engkur> <<<<<<========================= kuliah online "i/o redirect in bash & simple regex dengan grep" =====================>>>>>>>
[20:46:36] <hatoblack> Pm aja kalo di luar topik
[20:46:50] <engkur> ok jelas gak STDIN. STDOUT, STDERR
[20:46:59] <masdio> Jelas pak.
[20:47:15] <Denis_> lanjut bang
[20:47:21] <engkur> tadi belon ada contoh stdin
[20:47:25] <samsu> jelas, lanjut pak
[20:47:27] <engkur> coba kayak begini
[20:47:37] <dhegil123> izin nyimak min
[20:47:39] <iyas> kayaknya STDOUT belum pak..
[20:47:42] <iyas> maaf saya terlambat..
[20:47:59] <engkur> entar di ulang lagi
[20:48:09] <engkur> di command ketik
[20:48:14] <engkur> echo COBA
[20:48:27] <engkur> sory bukan commnad echo
[20:48:33] <engkur> read COBA
[20:49:03] <sandi> .............
[20:49:03] <engkur> engkur@mynotebook:~$ read COBA
[20:49:04] <engkur> ini percobaan STDIN aja
[20:49:04] <engkur> engkur@mynotebook:~$
[20:49:16] <engkur> abis command read COBA
[20:49:34] <engkur> kosong kan, gak keluar konsol nya
[20:49:44] <engkur> silahkan ketikin aja text di situ
[20:49:58] <engkur> read ini command yang baca dari STDIN
[20:50:08] <engkur> nah sekarang coba command
[20:50:09] <ryan_> STDIN : Telp trus ada yg ngangkat. STDOUT: Menjawab pertanyaan dari lawan bicara. STDERR: Mau menelepon tapi gk ada pulsa ( yg jawab operator ).
[20:50:15] <engkur> echo $COBA
[20:50:41] <engkur> ryan_, ok analogi yang bagus
[20:50:57] <engkur> engkur@mynotebook:~$ echo $COBA
[20:50:57] <engkur> ini percobaan STDIN aja
[20:50:57] <engkur> engkur@mynotebook:~$
[20:51:31] <engkur> nah command echo ini akan baca STDIN dari memory linux, yang tadi di input dari command read
[20:52:07] <engkur>  $ yang di depan COBA itu artinya echo baca variabel
[20:52:17] <engkur> variabel yang di masukin dari read
[20:52:20] <engkur> ok jelas....
[20:52:26] <lawliet> jadi read itu buat nulis ke memory ya pa?
[20:52:27] <engkur> sesi tanya dulu deh sebentar
[20:53:00] <engkur> lawliet, masukin variabel
[20:53:39] <iyas> setelah kita memasukan tulisan variabel dengan command read.. apakah tulisan itu akan tetap tersimpan setelah reboot?
[20:54:14] <engkur> iyas, enggak
[20:54:22] <engkur> variable itu ilang
[20:54:35] <engkur> kecuali di bikin file
[20:54:38] <lawliet> variable itu masuk ke ram berarti ya pa?
[20:54:46] <engkur> iya di memory aja
[20:54:54] <iyas> klo cuma mematikan terminal tanpa reboot?
[20:55:06] <engkur> hmm belon coba
[20:55:34] <iyan> Bagaimana cara menghapus variabel tersebut?
[20:56:07] <lawliet> close terminal variable ilang.
[20:56:19] <engkur> hmm masukin aja read baru
[20:56:36] <goOpenSource> tmn2 yg lain diam aja dlu yah. biar kang tengkur menjelaskan dlu. ntar ada sesi tanya jawab :)
[20:56:43] <engkur> ok udah lanjut...
[20:56:59] <ryan_> https://asciinema.org/a/1315
[20:57:04] <engkur> sekarang kita bikin contoh stdin, pake redirect input
[20:57:13] <engkur> coba bikin file
[20:57:35] <engkur> pake text editor, nano, vi, gedit, libreoffice... ah overkill
[20:57:43] <engkur> isi nya kayak gini aja
[20:57:52] <engkur> ini coba text dari file
[20:58:19] <arydeoblo> maaf, ini materinya apa ya gan ? ane baru masuk nih
[20:58:46] <Nurdin> dah mulai ya gan
[20:58:49] <engkur> coba kita mainkan
[20:58:56] <engkur> nano text.txt
[20:59:22] <engkur> isi dengani "ini coba text dari file"
[20:59:40] <Denis_> lanjut
[20:59:42] <engkur> coba kita liat isi file nya
[20:59:45] <engkur> engkur@mynotebook:~$ cat text.txt
[20:59:45] <engkur> ini coba text dari file
[20:59:45] <engkur> engkur@mynotebook:~$
[20:59:50] <engkur> kayak begitu kan
[20:59:56] <engkur> ah masih simple
[21:00:17] <engkur> tapi coba kita masukan isi file nya ke variable
[21:00:32] <engkur> read coba < text.txt
[21:01:00] <engkur> sory pake cap buat variable nya
[21:01:05] <engkur> read COBA < text.txt
[21:01:28] <engkur> engkur@mynotebook:~$ read COBA < text.txt
[21:01:37] <engkur> ngkur@mynotebook:~$ echo $COBA
[21:01:37] <engkur> ini coba text dari file
[21:01:52] <engkur> nah itu cotoh STDIN
[21:01:55] <Denis_> paham bang (y)
[21:01:57] <engkur> standar input
[21:02:01] <engkur> paham
[21:02:07] -*- iyan begitu ya :)
[21:02:28] <engkur> ok salah satu contoh lagi deh
[21:02:35] <engkur> tau command bc ?
[21:02:40] <Denis_> ga tauu
[21:02:53] <engkur> bc buat itungan matematik di consol
[21:03:12] <engkur> operasi - + * ! ^
[21:03:20] <engkur> coba jalanin bc
[21:03:29] <Denis_> contohin bang
[21:03:48] <engkur> engkur@mynotebook:~$ bc
[21:03:48] <engkur> bc 1.06.95
[21:03:48] <engkur> Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
[21:03:48] <engkur> This is free software with ABSOLUTELY NO WARRANTY.
[21:03:48] <engkur> For details type `warranty'.
[21:03:48] <engkur> 2*3
[21:03:50] <engkur> 6
[21:03:59] <engkur> command nya interaktif
[21:04:11] <engkur> kalo udahan kasih command quit
[21:04:32] <engkur> nah kita mau bikin pake stdin dari file
[21:04:43] <engkur> kita bikin file misalnya 2*3
[21:04:51] <engkur> sory isi nya 2*3
[21:05:20] <engkur> engkur@mynotebook:~$ cat kali.txt
[21:05:21] <engkur> 2*3
[21:05:21] <engkur> engkur@mynotebook:~$
[21:05:39] <engkur> sory
[21:05:45] <engkur> pake nano kali.txt
[21:05:53] <engkur> nah sekarang jalanin kayak begini
[21:06:11] <engkur> bc < kali.txt
[21:06:18] <engkur> engkur@mynotebook:~$ bc < kali.txt
[21:06:18] <engkur> 6
[21:06:19] <engkur> engkur@mynotebook:~$
[21:06:23] <engkur> nah itu lah
[21:06:28] <Denis_> bang mau tanya
[21:06:29] <violation> oke
[21:06:47] <engkur> ok
[21:07:07] <Denis_> blom paham ini fungsinya untuk apa
[21:07:24] <engkur> coba nih kita isi file nya 3 baris
[21:07:27] <engkur> engkur@mynotebook:~$ cat kali.txt
[21:07:27] <engkur> 2*3
[21:07:27] <engkur> 30+40
[21:07:27] <engkur> 2^5
[21:07:27] <engkur> engkur@mynotebook:~$
[21:07:33] <engkur> masukin ke bc
[21:07:38] <engkur> jadi kayak begini
[21:07:48] <engkur> ngkur@mynotebook:~$ bc < kali.txt
[21:07:48] <engkur> 6
[21:07:49] <engkur> 70
[21:07:49] <engkur> 32
[21:08:03] <Denis_> bang filenya itu apa bisa file dengan extensi lain ?
[21:08:04] <engkur> Denis_, apa nya belon ngerti ?
[21:08:11] <engkur> yap boleh
[21:08:22] <Denis_> misalnya apa aja ?
[21:08:29] <engkur> di linux... sebener nya extention itu gak berpengaruh
[21:08:36] <engkur> enggak kayak di windows
[21:08:38] <masdio> tanpa extensi bisa
[21:08:42] <engkur> boleh
[21:09:03] <engkur> ok guna nya...
[21:09:35] <engkur> kalo udah bisa maenan kayak begini, ngerjain manipulasi text yang gede, bisa dari command aja
[21:09:38] <engkur> gini
[21:09:54] <ion_nsk_region> Halo!
[21:10:07] <engkur> bayanngin elo harus ngitung deretan angka... 1jt baris
[21:10:36] <engkur> isi nya cuma 1x2 4x5 kayak begitu deh
[21:10:39] <lawliet> paham pak, jadi STDIN itu untuk memasukan data kedalam sebuah program, begitu ya pa? :D
[21:10:50] <engkur> ada efektif pake libreoffice, excel
[21:10:59] <engkur> bisa bisa ngehang duluan tuh program
[21:11:16] <engkur> lawliet, yap betul
[21:12:19] <engkur> ok ...
[21:12:25] <engkur> ada yang tanya lagi
[21:12:33] <engkur> ???
[21:12:43] <engkur> kalo enggak lanjut ke STDOUT
[21:12:52] <engkur> standar output
[21:13:06] <engkur> dan redirect
[21:13:07] <Denis_> lanjut deh
[21:13:29] <engkur> tadi kalo < ini nama nya redirect input
[21:13:38] <engkur> kalo > nama nya redirect output
[21:14:21] <engkur> >> non destructif redirect
[21:14:28] <engkur> | ini pipe
[21:14:48] <masdio> destrictif, pipe itu apa pak?
[21:14:49] <engkur> yang di atas enter, pake shit
[21:15:12] <masdio> shit?
[21:15:22] <engkur> >> non destructive, arti nya enggak nimpa yang udah ada
[21:15:27] <engkur> entar di contohin
[21:15:33] <engkur> shift, bukan shit...
[21:15:37] <Muhlas> yang kayak l, tapi panjang ? ini  l , |
[21:15:37] <engkur> jorok lu
[21:16:00] <engkur> yang satu key sama \
[21:16:13] <engkur> nama nya pipe
[21:16:14] <engkur> pipa
[21:16:47] <engkur> fungsi nya output dari command di kasih ke input command lain ya
[21:17:49] <engkur> ada 2> ini artinya redirect standari error
[21:18:56] <engkur> & buat redirect standard error ke standar output dan sebalik nya
[21:19:00] <engkur> ok...
[21:19:14] <engkur> kita oprek redirect output
[21:19:19] <masdio> Oke pak.
[21:19:46] <masdio> Kayak on error reume next
[21:20:13] <lawliet> wkwkwk,,, on error resume next vb... :v
[21:20:21] <engkur> ok ada info fulu nih
[21:20:33] <masdio> WKwkwk
[21:21:08] <ahmad> gimna gan cara belajarnya?
[21:21:19] <engkur> < di sebener nya 0< adalah, 0 ini stdin adalah 0
[21:21:30] <engkur> 1> ini sama aja >
[21:21:46] <engkur> tapi 2> ini harus di tulis, buat stderr
[21:22:00] <ahmad> nyimak aj dehh..
[21:22:38] <engkur> ok gini
[21:22:39] <engkur> kalo kita ls , kan keluar tuh di konsol
[21:22:59] <ahmad> smua foldernya gan??
[21:23:11] <engkur> kalo pake > hasil yang keluar ke konsol, sekarang di redirect jadi file
[21:23:42] <engkur> ah gue bikin dir kosong dulu supaya gak terlau penuh
[21:24:43] <engkur> engkur@mynotebook:~/test$ ls
[21:24:43] <engkur> dir1  dir2  dir3  test  test1  test2
[21:24:43] <engkur> engkur@mynotebook:~/test$
[21:25:11] <engkur> nah di dalem dir test ada dir1 ...
[21:25:26] <Denis_> lalu ?
[21:25:27] <engkur> kita mau bikin sebuat file dari hasil ls
[21:25:28] <engkur> gini
[21:25:31] *** Mode #ubuntu-indonesia +v hellnest by ChanServ
[21:25:49] <engkur> ls > listfile
[21:26:11] <engkur> engkur@mynotebook:~/test$ cat listfile
[21:26:12] <engkur> dir1
[21:26:12] <engkur> dir2
[21:26:12] <engkur> dir3
[21:26:12] <engkur> listfile
[21:26:12] <engkur> test
[21:26:14] <engkur> test1
[21:26:16] <engkur> test2
[21:26:18] <engkur> engkur@mynotebook:~/test$
[21:26:27] <Denis_> oh begonooh hehe
[21:26:35] <engkur> jadi yang tadi nya keluar ke consol, sekarang berubah jadi file
[21:27:02] <engkur> hmm penggunaan praktis nya
[21:27:14] <engkur> coba bikin list semua file di direktory home
[21:27:23] <engkur> tinggal gini aja
[21:27:47] <arie_kiyoshi> mlm all
[21:28:01] <arie_kiyoshi> @@
[21:28:06] <engkur> ls -R /home/engkur > semua-home-engkur.txt
[21:28:27] <engkur> file gue ada ribuan... mungkin jutaan
[21:28:41] <DirectoryX> yang dimaksud -R itu apa ?
[21:28:50] <engkur> -R itu recursive
[21:29:03] <engkur> keliat sampe dalem dalem direktory
[21:29:30] <engkur> ok coba >> redirect nondestructive
[21:29:45] <engkur> coba command echo
[21:30:11] <engkur> kan kalo kita ketik belakang echo, akan keluar langsung ke consol lagi
[21:30:28] <engkur> engkur@mynotebook:~/test$ echo ini text dari command echo
[21:30:28] <engkur> ini text dari command echo
[21:30:28] <engkur> engkur@mynotebook:~/test$
[21:30:44] <engkur> nah coba sekarang pake >
[21:30:51] <hellnest> test
[21:30:55] <hellnest> selamat malam
[21:31:02] <engkur> echo ini text dari command echo > test-echo
[21:31:17] <engkur> engkur@mynotebook:~/test$ echo ini text dari command echo > test-echo
[21:31:26] <engkur> yap gak keluar apa apann...
[21:31:30] <masdio_> Disconnect lagi.
[21:31:51] <engkur> karena emang hasil standar output nya lari ke test-echo
[21:32:00] <masdio_> oke
[21:32:02] <arie_kiyoshi> terus cara keluar nya gimana
[21:32:05] <engkur> engkur@mynotebook:~/test$ cat test-echo
[21:32:05] <engkur> ini text dari command echo
[21:32:06] <engkur> engkur@mynotebook:~/test$
[21:32:14] <engkur> coba di cat isinya
[21:32:25] <engkur> dan sekarang coba lagi
[21:32:38] <engkur> engkur@mynotebook:~/test$ echo ini text dari command echo lagi nih  > test-echo
[21:32:59] <engkur> engkur@mynotebook:~/test$ cat test-echo
[21:32:59] <engkur> ini text dari command echo lagi nih
[21:32:59] <engkur> engkur@mynotebook:~/test$
[21:33:21] <engkur> kalo pake > isi yang sebelum nya di timpa dengan redirect baru
[21:33:25] <engkur> coba pake >>
[21:33:49] <akram> assalamualaikum..
[21:34:02] <lawliet> waalakumsalam
[21:34:05] <engkur> engkur@mynotebook:~/test$ echo ini text dari command echo > test-echo
[21:34:05] <engkur> engkur@mynotebook:~/test$ echo ini text dari command echo baris 2 >> test-echo
[21:34:16] <engkur> engkur@mynotebook:~/test$ cat test-echo
[21:34:17] <engkur> ini text dari command echo
[21:34:17] <engkur> ini text dari command echo baris 2
[21:34:34] <engkur> baris 1 hasil dari redirect yang pertama pake >
[21:34:42] <Denis_> sip
[21:34:48] <engkur> baris 2 hasil dari redirect yang pake >>
[21:34:55] <engkur> ok kayak begitu ya
[21:35:03] *** Mode #ubuntu-indonesia +v saa7_go by ChanServ
[21:35:08] <engkur> nah yg ketiga coba pake 2>
[21:35:09] <akram> kuliahnya dah abis master ?
[21:35:46] <aveiroaditya> kuliahnya udah abis, ya?
[21:35:55] <engkur> masih panjang....
[21:36:07] <engkur> ok sekarang 2>
[21:36:17] <engkur> ls dir atau file yang enggak ada coba deh
[21:36:31] <akram> wowww,, mulainya gimana gan ?
[21:36:34] <engkur> engkur@mynotebook:~/test$ ls enggakada
[21:36:35] <engkur> ls: cannot access enggakada: No such file or directory
[21:36:35] <engkur> engkur@mynotebook:~/test$
[21:36:44] <engkur> nah kan keluar kayak begitu
[21:37:00] <engkur> sekarag kita keluarin error nya jadi file
[21:37:31] <engkur> engkur@mynotebook:~/test$ ls enggakada 2> test-error
[21:37:46] <engkur> engkur@mynotebook:~/test$ cat test-error
[21:37:46] <engkur> ls: cannot access enggakada: No such file or directory
[21:37:51] <engkur> ok ....
[21:37:53] <engkur> jelas gak
[21:37:59] <engkur> ada yang tanya....
[21:38:02] <engkur> ????
[21:38:09] <DirectoryX> 2> itu kayak command output ?
[21:38:11] <engkur> kalo enggak kita maenan pipe
[21:38:34] <akram> wkwkwk..
[21:38:35] <engkur> 2> kayak redirect output, cuma ini yang di redirect error nya
[21:38:50] <DirectoryX> oh
[21:39:00] <engkur> biasa kan kalo lagi bolot ngetik command keluar error nya mulu
[21:39:27] <engkur> btw tips kalo di shell script
[21:39:31] <engkur> suka ada
[21:39:38] <engkur> 2> /dev/null
[21:39:43] <engkur> artinya...
[21:39:50] <engkur> /dev/null ini blackhole
[21:40:12] <engkur> tempat sampah, tapi bolong, jadi yang di buang ke situ langsung hilang
[21:40:37] <engkur> sesi tanya dulu
[21:40:42] <engkur> sebelum tambah berat materi nya
[21:40:54] <engkur> sediain kantong kresek item
[21:41:02] <engkur> kalo muntah gampang buang nya
[21:41:12] <engkur> btw udah siapin antimo ?
[21:41:34] <DirectoryX> udah kok
[21:41:40] <Denis_> ada tai kucing bang didepan, tinggal sikat aja hha
[21:41:56] <engkur> sebentar minum dulu
[21:42:07] <engkur> iya tuh asem nya bagus buat obat muntah
[21:42:31] <iyas> semisal kita ingin redirect error tanpa menghapus isi dari sebuah file gimana?
[21:42:50] *** Mode #ubuntu-indonesia +v sesuatu by ChanServ
[21:43:20] <engkur> pake 2>>
[21:43:29] <iyas> misal ada file cth.txt kemudian kita ingin meredirect errornya ke file cth.txt yang dah ada isinya tanpa menghapus isinya gimana?
[21:43:42] <iyas> ok.. kang..
[21:44:04] <engkur> iyas, hmm susah kalo langsung kayak begitu sih
[21:44:20] <engkur> biasanya bikin file ke 2 dulu buat store sementara
[21:44:24] <engkur> ok...
[21:44:26] <engkur> gini
[21:44:34] <engkur> gue punya 2 atau lebih
[21:44:43] <engkur> pengan di gabung, gimana cara nya ?
[21:45:23] <engkur> tau command cat kan ?
[21:45:29] <DirectoryX> tau
[21:45:34] <engkur> bukan cat kucing
[21:45:40] <saa7_go> wkwkwk
[21:45:41] <engkur> musuh nya dog
[21:45:43] <Denis_> cat tembok
[21:45:51] <engkur> apalagi cat tebok
[21:45:51] <DirectoryX> sama kayak nano kan
[21:46:00] <engkur> gak beda
[21:46:06] <DirectoryX> bedanya apa ?
[21:46:07] <lawliet> nano permen
[21:46:16] <Denis_> kayak echo kali ya
[21:46:17] <engkur> cat ini ngeluarin isi file ke output
[21:46:39] <engkur> ada 2 file, kita gabung jadi file ke 3
[21:46:41] <engkur> gini cara nya
[21:46:55] <engkur> cat file1 file2 > file3
[21:47:38] <engkur> btw cat juga ampuh buat bikin image, misal nya dari disket, cdrom, atau blokdevice apapun
[21:47:51] <engkur> cat /dev/cdrom > cdrom.iso
[21:48:03] <engkur> ini bikin file iso dari cdrom
[21:48:11] <engkur> ok lanjut....
[21:48:20] <engkur> btw ada yg tanya lagi ?
[21:48:36] <Denis_> jangan--jangan bikin anak bisa pake cat *eh
[21:48:59] <iyas> membuat file image .dmg apakah sama?
[21:49:44] <engkur> iyas, gak tau kalo dmg, soal nya ini format nya mac
[21:49:52] <engkur> img sih iya
[21:49:53] <saa7_go> beneran pernah burn/mount iso hasil dari cat dan bisa dibaca dengan bener 100% ?
[21:50:00] <engkur> kayak begini
[21:50:20] <engkur> cat /dev/sda > hdd.img
[21:50:28] <engkur> ini sama aja bikin image dari hardisk
[21:50:42] <engkur> btw jangan di kerjain, bakalan ngehang....
[21:50:42] <lawliet> apa nggak korup om?
[21:51:01] <engkur> yap korup, soal nya os nya lagi jalan
[21:51:19] <engkur> kalo device nya gak di pake, gak di mount baru aman
[21:51:37] <engkur> ok ....
[21:51:42] <engkur> maenan pipe
[21:51:43] <lawliet> yakin bisa itu om, nanti ane coba.
[21:51:52] <engkur> kita jadi tukang ledeng dulu
[21:52:03] <engkur> ada yang wc nya mampet
[21:52:10] <engkur> gini
[21:52:46] <engkur> kalo echo, ls hsil nya akan keluar ke command
[21:52:55] <engkur> kita alihkan ke command berikut nya
[21:53:01] <engkur> coba pake echo & bc
[21:53:14] <engkur> echo 3*4 | bc
[21:53:30] <engkur> engkur@mynotebook:~/test$ echo 3*4 |bc
[21:53:30] <engkur> 12
[21:53:30] <engkur> engkur@mynotebook:~/test$
[21:53:35] <engkur> artinya
[21:53:51] <engkur> 3*4 yang seharus nya keluar ke consol
[21:53:57] <engkur> sekarang masuk ke command bc
[21:54:08] <Denis_> lalu dimunculkan
[21:54:13] <Denis_> begitukah ?
[21:54:19] <engkur> dan yang keluar adalah hasil dari bc
[21:54:21] <engkur> yap
[21:54:49] <engkur> mirip kayak tadi
[21:54:58] <engkur> bc < inputfile
[21:55:19] <engkur> ok | ini kita bisa gunakan sebanyak banyak nya...
[21:55:22] <engkur> terserah aja
[21:58:10] <Denis_> lanjut bang
[22:00:19] <engkur> ok...
[22:00:25] <engkur> ada yang ketinggalan
[22:00:37] <engkur> 2>&1
[22:00:57] <engkur> ini artinya standar error berubah jadi standar output
[22:01:18] <engkur> kalo 1>&2 ini kebalikan nya
[22:01:32] <engkur> yang biasa di pake 2>&1
[22:01:40] <engkur> ok kayak begini
[22:01:44] <lawliet> sip & berarti untuk ngubah ya om
[22:01:53] <engkur> lawliet, iya bener
[22:01:57] <engkur> kayak begini
[22:02:09] <engkur> ls > list.txt
[22:02:15] <engkur> dari awal deh
[22:02:26] <engkur> ini kan hasil ls di larikan ke list.txt
[22:02:40] <engkur> kalo di belakang nya kita kasih 2>&1
[22:02:42] <engkur> artinya
[22:03:05] <engkur> ls > list.txt 2>&1
[22:03:25] <engkur> kalo ada error dari command ls itu, masukin juga ke file list.txt
[22:04:01] <engkur> kalo ls doang kan emang gak ada error
[22:04:04] <engkur> coba
[22:04:20] <engkur> ls enggakada > list.txt 2>&1
[22:05:07] <engkur> yang keluar jadi
[22:05:09] <engkur> engkur@mynotebook:~/test$ ls enggakada > test-error 2>&1
[22:05:13] <engkur> kosong aja kan
[22:05:17] <engkur> beda dengan
[22:05:25] <engkur> engkur@mynotebook:~/test$ ls enggakada > test-error
[22:05:26] <engkur> ls: cannot access enggakada: No such file or directory
[22:05:31] <engkur> itu kan error nya keluar
[22:05:54] <engkur> kalo pake 2>&1 error gak keluar, tapi masuk ke file test-error
[22:06:02] <engkur> coba kayak begini
[22:06:20] <engkur> engkur@mynotebook:~/test$ ls enggakada > test-error
[22:06:35] <engkur> engkur@mynotebook:~/test$ ls enggakada >> test-error 2>&1
[22:06:36] <engkur> engkur@mynotebook:~/test$ ls enggakada >> test-error 2>&1
[22:06:36] <engkur> engkur@mynotebook:~/test$ ls enggakada >> test-error 2>&1
[22:06:36] <engkur> engkur@mynotebook:~/test$ cat test-error
[22:06:36] <engkur> ls: cannot access enggakada: No such file or directory
[22:06:38] <engkur> ls: cannot access enggakada: No such file or directory
[22:06:40] <engkur> ls: cannot access enggakada: No such file or directory
[22:06:45] <purwanto_> Assalamu'alaikum, perkenalkan saya Ahmad Purwanto dari Brebes :-)
[22:06:46] <engkur> itu ngerjain 3 x
[22:07:04] <lawliet> waalakumsalam
[22:07:07] <engkur> tapi karena pake >> jadi file test-error nya grow, nambah terus isi nya
[22:07:18] <engkur> begitu juga kalo ada hsil output nya
[22:07:41] <engkur> ngkur@mynotebook:~/test$ ls enggakada >> test-error 2>&1
[22:07:42] <engkur> engkur@mynotebook:~/test$ cat test-error
[22:07:42] <engkur> ls: cannot access enggakada: No such file or directory
[22:07:42] <engkur> ls: cannot access enggakada: No such file or directory
[22:07:42] <engkur> ls: cannot access enggakada: No such file or directory
[22:07:42] <engkur> enggakada
[22:07:44] <engkur> engkur@mynotebook:~/test$
[22:07:48] <engkur> hmm ok
[22:07:53] <engkur> agak bingung...
[22:08:02] <engkur> fungsi nya...
[22:08:27] <engkur> kalo kita bikin crontab, atau bikin script, service misal nya
[22:08:35] <engkur> yang nulis ke file log
[22:08:46] <engkur> isi file log itu campuran dari output dan error
[22:08:58] <engkur> kita bisa bikin command kayak begini misal nya
[22:09:45] <engkur> ini misalnya jalanin rsync kalo ada output atau erorr masukin ke log
[22:11:18] <engkur> rsync -avr --progress --partial /var/www/myweb.com user@server.anu:/var/www/myweb.com >> /var/log/rsync-myweb.log 2>&1
[22:11:31] <engkur> masukin ke crontab deh
[22:12:03] <engkur> dan kita bisa mantau misalnya network nya putus, di rsync-myweb.log ada record rsync nya
[22:12:05] <engkur> ok....
[22:12:08] <engkur> ada yang tanya lagi
[22:12:41] <engkur> gue buka sesi tanya dulu barag 10 menit
[22:12:43] <engkur> .....
[22:13:02] <engkur> sebelum lanjut ke grep
[22:14:46] *** Mode #ubuntu-indonesia +v sesuatu by ChanServ
[22:15:47] <engkur> ok....
[22:15:50] <engkur> gak ada ?
[22:16:02] <engkur> refresh dulu nih kepala
[22:16:07] <engkur> kayak nya agak ngebul
[22:18:39] <lawliet> ngopi dulu om.
[22:19:46] <engkur> ok maenan grep
[22:20:10] <engkur> asli nya... ngambil ya
[22:20:33] <engkur> grep itu mencari something di dalem... file
[22:20:37] <engkur> atau dari stdin
[22:20:48] <engkur> grep ini biasanya meanan regex
[22:21:00] <engkur> ok regex = regular expression
[22:21:13] <engkur> ini yang gampang dulu
[22:21:20] <engkur> gue juga gak expert banget di sini
[22:22:01] <engkur> * segala macem karakter... sebanyak banyak nya karakter atau angka
[22:22:11] <engkur> . single karakter
[22:22:17] <engkur> . single karakter tapi enggak di belakang
[22:22:37] <engkur> [] semua yang di dalem range dalem braket
[22:22:52] <engkur> ^ yang di depan baris
[22:23:01] <engkur> $ yang di belakang baris
[22:23:08] *** Mode #ubuntu-indonesia +v pupil by ChanServ
[22:23:14] <engkur> ada juga yang laen belon apal...
[22:23:18] <engkur> segini aja dulu
[22:23:55] <engkur> udah gape maenan grep.... & regex
[22:24:03] <engkur> ya ini lah kerjaan admin
[22:24:39] <engkur> ok...
[22:24:49] <engkur> gini gue bikin file isi nya
[22:27:13] <engkur> engkur@mynotebook:~/test$ nano binatang.txt
[22:27:14] <engkur> engkur@mynotebook:~/test$ cat binatang.txt
[22:27:14] <engkur> kuda
[22:27:14] <engkur> kucing
[22:27:14] <engkur> kambing
[22:27:14] <engkur> anjing
[22:27:16] <engkur> kebo
[22:27:18] <engkur> gajah
[22:27:20] <engkur> kelinci
[22:27:22] <engkur> komodo
[22:27:24] <engkur> rusa
[22:27:26] <engkur> engkur@mynotebook:~/test$
[22:27:28] <engkur> nah kayak begitu ya
[22:27:30] <engkur> coba kita menan grep dari file
[22:28:11] <engkur> coba kita pengen cari binatang yang pake huruf k
[22:28:19] <engkur> grep k binatang.txt
[22:28:35] <engkur> engkur@mynotebook:~/test$ grep k binatang.txt
[22:28:35] <engkur> kuda
[22:28:35] <engkur> kucing
[22:28:35] <engkur> kambing
[22:28:35] <engkur> kebo
[22:28:36] <engkur> kelinci
[22:28:37] <engkur> komodo
[22:28:41] <engkur> engkur@mynotebook:~/test$
[22:28:53] <engkur> nah keluar kan yang pake k
[22:28:57] <engkur> coba
[22:29:10] <engkur> coba grep ku binatang.txt
[22:32:56] * Topic for #ubuntu-indonesia is "Belajar, bercanda bersama teman-teman tentunya di kanal HOT | log : https://www.dropbox.com/sh/d5dp3vzs9pq2pq7/NB40G9ATox"
[22:32:56] * Topic set by blackKWSuper on Wed Feb 26 16:44:46 2014
[22:33:00] <Se7enTime> hadirrr
[22:33:01] <engkur> pupil, nyari file dari deretan file....
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[22:33:03] * Channel #ubuntu-indonesia created on Wed Oct 27 13:10:34 2010
[22:33:09] <sesuatu> 8-)
[22:33:09] [ChanServ] Belajar HOT dengan materi HOT, oleh pemateri-pemateri HOT, tentunya di kanal HOT | log : https://www.dropbox.com/sh/d5dp3vzs9pq2pq7/NB40G9ATox
[22:33:09] * Homepage for #ubuntu-indonesia is http://ubuntu-indonesia.com/
[22:33:12] -*- sesuatu sedang menikmati kopi + dangdut
[22:33:14] <engkur> ini kita pake pipe lagi
[22:33:27] <engkur> jadi kalo kayak begini
[22:33:51] <engkur> ls | grep jpg
[22:34:05] <engkur> semua yang ada jpg nya pasti keluar
[22:34:12] <engkur> walaupun di tengah
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[22:34:40] <engkur> kayak misalnya file filejpgku
[22:35:21] <engkur> jadi pipe & grep udah powerfull tool buat searching
[22:35:54] <engkur> misanya kita bikin list file pdf di /home/engkur
[22:35:58] <engkur> sampe ke dalem dalem nya
[22:36:00] <engkur> coba kayak begini
[22:36:28] <engkur> ls -R /home/engkur/ | grep *.pdf > list-file-pdf.txt
[22:36:35] <engkur> ok jelas gak
[22:36:42] <lawliet> nambahin ya om, klo kepanjangan bisa pake |more
[22:37:08] <engkur> more itu kalo mau ngeliat ke consol aja
[22:37:30] <engkur> kalo enggak mau langsung jadi file pake redirect output aja
[22:37:43] <engkur> kalo kayak begini hsil nya ke output
[22:37:51] <engkur> ls -R /home/engkur/ | grep *.pdf |more
[22:38:12] <lawliet> yup
[22:38:17] <engkur> ok...
[22:38:44] <engkur> pipe juga bisa dobel dobel
[22:38:46] <engkur> kayak begini
[22:40:05] <engkur> ls /home/engkur/ |grep *jpg |grep ku > file-ku-jpg.txt
[22:40:10] <engkur> ok ok...
[22:40:52] <engkur> soal regex
[22:41:04] <engkur> tadi ada * . [] ^ $
[22:41:13] <engkur> coba kita pake satu satu...
[22:41:25] <engkur> tapi cooling down dulu deh
[22:41:35] <engkur> tanya jawab dulu barang 5 menit
[22:42:11] <engkur> agak panas kepala nya
[22:42:43] <lawliet> semangat om,,, saya out ya,,, makasih ilmunya...
[22:42:52] <Malsasa> engkur: apakah bisa diterapkan pada manpages, Kang? Misalnya untuk mencari suatu kata tertentu?
[22:43:09] <engkur> kayak nya bisa
[22:44:11] <engkur> bisa kak
[22:44:32] <engkur> kalo pake man kan sebener nya keluar command less
[22:44:42] <engkur> kalo cari pake /
[22:44:47] <engkur> kalo langsung bisa aja
[22:44:53] <engkur> man ls |grep dir
[22:45:07] <}i{> ih dicolek om sangkur :D
[22:45:56] <engkur> kalo kita cari karakter petama atau yg terakhir
[22:46:37] <engkur> karakter pertama pake ak misal ya tapi kita gak mau kalo ada k di tengah
[22:49:27] <engkur> ok gue tambagin isi fle nya
[22:49:30] <engkur> engkur@mynotebook:~/test$ cat binatang.txt
[22:49:30] <engkur> kuda
[22:49:31] <engkur> kucing
[22:49:31] <engkur> kambing
[22:49:31] <engkur> anjing
[22:49:31] <engkur> kebo
[22:49:32] <engkur> gajah
[22:49:34] <engkur> kelinci
[22:49:36] <engkur> komodo
[22:49:39] <engkur> rusa
[22:49:42] <engkur> badak
[22:49:45] <engkur> kodok
[22:49:47] <engkur> engkur@mynotebook:~/test$
[22:49:53] <engkur> nah sekarang aku mau cari huruf peratama nya k
[22:50:27] <engkur> soal nya kalo grep k , akan kena badak, karena ada k walaupun di belakang
[22:50:35] <engkur> jadi buat karakter depan kita pake ^
[22:52:03] <engkur> ok
[22:52:18] <showcheap>  ls -R /home/chip/Pictures/ | grep *.jpg
[22:52:24] <showcheap> gak kluar hasilnya
[22:52:27] <showcheap> tapi kalau
[22:52:27] <engkur> jadi kalo cari yang depan nya k, tapi kita gak mau yang di tengah atau belakang ikut
[22:52:31] <showcheap>  ls -R /home/chip/Pictures/ | grep .jpg
[22:52:33] <showcheap> mau keluar
[22:52:48] <showcheap> gimana tuh kang engkur
[22:52:56] <engkur> hmm
[22:53:14] <engkur> . itu
[22:53:42] <engkur> . itu any 1 karakter
[22:54:30] <engkur> kalo di grep
[22:54:39] <engkur> bisa juga kayak begini kan
[22:54:50] <showcheap> kalaupun grep jpg sama grep *jpg  kok beda ya kang?
[22:54:55] <engkur> ls -R Gambar/*.jpg
[22:55:22] <engkur> showcheap, sebentar... lanjut dulu pake ^ dan $
[22:55:30] <engkur> sekalian jawab
[22:55:36] <engkur> kalo kita cari karakter depan aja
[22:55:52] <engkur> kita cari pake ^k
[22:55:57] <engkur> jadi kayak begini
[22:56:25] <engkur> engkur@mynotebook:~/test$ grep ^k binatang.txt
[22:56:26] <engkur> kuda
[22:56:26] <engkur> kucing
[22:56:26] <engkur> kambing
[22:56:26] <engkur> kebo
[22:56:26] <engkur> kelinci
[22:56:28] <engkur> komodo
[22:56:29] <engkur> kodok
[22:56:38] <engkur> nah badak ada k nya tapi di belakang gak kena
[22:56:45] <engkur> coba kita cari belakang nya
[22:57:23] <engkur> engkur@mynotebook:~/test$ grep k$ binatang.txt
[22:57:24] <engkur> badak
[22:57:24] <engkur> kodok
[22:57:24] <engkur> engkur@mynotebook:~/test$
[22:57:34] <engkur> nah sekarang badak kena
[22:57:37] <engkur> ok...
[22:57:50] <engkur> bisa kita gabung dobel grep
[22:57:52] <engkur> kayak
[22:58:11] <engkur> mau cari depan nya k belakang nya ng
[22:58:45] <engkur> grep ^k binatang.txt | grep ng$
[22:59:13] <engkur> engkur@mynotebook:~/test$ grep ^k binatang.txt |grep ng$
[22:59:13] <engkur> kucing
[22:59:13] <engkur> kambing
[22:59:13] <engkur> engkur@mynotebook:~/test$
[23:00:35] <engkur> ok...
[23:00:55] <engkur> btw grep bisa juga gabung dari cat
[23:00:58] <engkur> kadang kita liat
[23:01:07] <engkur> cat file.txt |grep anu
[23:01:12] <engkur> padahal sama aja
[23:01:18] <engkur> grep anu file.txt
[23:01:44] <engkur> pake tail atau head juga boleh
[23:01:48] <engkur> kayak begii
[23:02:05] <engkur> tail -n 100 file.log |grep error
[23:02:27] <engkur> cari yang 100 baris terakhir dan cari kata kata erorr
[23:03:05] <engkur> ok ada yang tanya lagi
[23:03:11] <engkur> sedikit lagi kelar
[23:09:22] <engkur> ok kita bikin file kombinasi text dan angka, dan ada space nya
[23:12:11] <engkur> gue bikin file kayak begini
[23:12:14] <engkur> engkur@mynotebook:~/test$ cat warna.txt
[23:12:14] <engkur> 1 kuning
[23:12:14] <engkur> 3 biru
[23:12:14] <engkur> hijau 04
[23:12:14] <engkur> 446 merah
[23:12:15] <engkur> hitam
[23:12:17] <engkur> merahbara
[23:12:19] <engkur>      23193821091 coklat
[23:12:21] <engkur> 319801388 ungu
[23:12:23] <engkur> engkur@mynotebook:~/test$
[23:12:33] <engkur> ok kita bisa maenan grep yang []
[23:12:49] <engkur> [] artinya range
[23:12:58] <engkur> coba aja
[23:13:10] <engkur> grep [0-9] warna.txt
[23:13:29] <engkur> ngkur@mynotebook:~/test$ grep [0-9] warna.txt
[23:13:29] <engkur> 1 kuning
[23:13:30] <engkur> 3 biru
[23:13:30] <engkur> hijau 04
[23:13:30] <engkur> 446 merah
[23:13:30] <engkur>      23193821091 coklat
[23:13:32] <engkur> 319801388 ungu
[23:13:38] <engkur> semua yang ada angka nya kena
[23:13:45] <engkur> coba range di perkecil
[23:14:02] <engkur> engkur@mynotebook:~/test$ grep [2-9] warna.txt
[23:14:03] <engkur> 3 biru
[23:14:03] <engkur> hijau 04
[23:14:03] <engkur> 446 merah
[23:14:03] <engkur>      23193821091 coklat
[23:14:03] <engkur> 319801388 ungu
[23:14:05] <engkur> engkur@mynotebook:~/test$
[23:14:13] <engkur> nah yang 1 kuning gak kena
[23:14:15] <engkur> karena
[23:14:31] <engkur> [2-9] artinya cari angka 2 sampai 9
[23:14:35] <engkur> ok...
[23:14:58] <engkur> sekarang coba cari yang depan nya anka
[23:15:17] <engkur> engkur@mynotebook:~/test$ grep ^[0-9] warna.txt
[23:15:17] <engkur> 1 kuning
[23:15:17] <engkur> 3 biru
[23:15:17] <engkur> 446 merah
[23:15:17] <engkur> 319801388 ungu
[23:15:27] <engkur> yang belakang nya angka
[23:15:41] <engkur> ngkur@mynotebook:~/test$ grep [0-9]$ warna.txt
[23:15:41] <engkur> hijau 04
[23:15:41] <engkur> engkur@mynotebook:~/test$
[23:16:10] <engkur> ok yang depan nya spasi gak kena kalo ^[0-9]
[23:16:23] <engkur> coba pake ^\ *[0-9]
[23:16:42] <engkur> ngkur@mynotebook:~/test$ grep ^\ *[0-9] warna.txt
[23:16:42] <engkur> 1 kuning
[23:16:42] <engkur> 3 biru
[23:16:42] <engkur> 446 merah
[23:16:42] <engkur>      23193821091 coklat
[23:16:45] <engkur> 319801388 ungu
[23:16:46] <engkur> engkur@mynotebook:~/test$
[23:16:54] <engkur> yang ada space nya kena
[23:17:03] <engkur> sekarang
[23:17:17] <engkur> cari yang dua digit atau lebih
[23:17:35] <engkur> coba pake [0-9][0-9]
[23:17:57] <engkur> engkur@mynotebook:~/test$ grep [0-9][0-9] warna.txt
[23:17:57] <engkur> hijau 04
[23:17:57] <engkur> 446 merah
[23:17:57] <engkur>      23193821091 coklat
[23:17:57] <engkur> 319801388 ungu
[23:17:58] <engkur> engkur@mynotebook:~/test$
[23:18:13] <engkur> sekarang yang angka nya 1 enggak kena kan
[23:18:17] <engkur> 1 digit
[23:18:56] <engkur> ok ...
[23:19:06] <engkur> sampe sini dulu kuliah nya...
[23:19:10] <engkur> ada yg tanya....
[23:19:13] <engkur> ???
[23:19:24] <engkur> silahkan tanya kalo enggak ada di tutup
[23:19:28] <engkur> gue pengen nonton
[23:19:31] <Malsasa> Opsi-opsi grep, Kang
[23:19:42] <engkur> hmm gak apal
[23:19:46] <engkur> liat di manual aja
[23:21:11] <engkur> eh braket bisa juga cari huruf
[23:21:14] <engkur> gak cuma angka
[23:21:35] <Malsasa> a-z?
[23:22:25] <engkur> liat di manual aja
[23:22:27] <engkur> yap bisa
[23:22:29] <engkur> kayak gini
[23:22:44] <engkur> grep [a-b]
[23:23:01] <engkur> cari kata ada a dan b,
[23:23:41] <engkur> gitu deh...
[23:23:47] <engkur> ok di tutup dulu dah
[23:24:06] <engkur> pake alhamdullilah
[23:24:53] <engkur> >>>>>>>>>>>=========================== kuliah i/o redirect, grep, regex kelar ================================<<<<<<<<<<<<<<
[23:24:58] <engkur> hehehe
[23:25:11] <engkur> besok besok yang lebih ngebul lagi
[23:25:26] <engkur> kayak maenan awk, sed, perl, atau python