]0;dw1e@dw1e-VirtualBox: ~dw1e@dw1e-VirtualBox:~$ sudo su
[sudo] password for dw1e:
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# useradd -G sudo -m -s /bin/bash Editorial_MB
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# passwd Editorial_MB
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# openssl passwd -crypt dw1e
cHb4mZv9ILy9s
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# echo otro métooteher method would be iwith useradd -p cHb
4mZ...
other method would be with useradd -p cHb4mZ...
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# echo and another onwee would be to use adduser
and another one would be to use adduser
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# login Editorial_MB
Password:
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage


 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch

0 packages can be updated.
0 updates are security updates.


The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ pwd
/home/Editorial_MB
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ mkdir -p Books/McGraw/{Web,Printed}
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ mkdir -p Pearson/Web
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ tree
.
├── Books
│   └── McGraw
│       ├── Printed
│       └── Web
├── examples.desktop
└── Pearson
    └── Web

6 directories, 1 file
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd Books/
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ touch pag{1,2,3}.html listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ ls
listrep  McGraw  pag1.html  pag2.html  pag3.html
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cat > listrep <<END
> Josh#Owen#1#Co
> Anne#Manson#12#Co
> Charles#Peterson#3#Je
> Eve#Carlson#11#Co
> END
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cat listrep
Josh#Owen#1#Co
Anne#Manson#12#Co
Charles#Peterson#3#Je
Eve#Carlson#11#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ listtrepp_prordsort -o listrep_ord listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cat listrep_ord
Anne#Manson#12#Co
Charles#Peterson#3#Je
Eve#Carlson#11#Co
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ grep Co$ listrep > listco
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cat listco
Josh#Owen#1#Co
Anne#Manson#12#Co
Eve#Carlson#11#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ grep ^J listrep > listJ
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cat listJ
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cut -d# -f1,2,3 listrep
Josh#Owen#1
Anne#Manson#12
Charles#Peterson#3
Eve#Carlson#11
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -t # -k2,2 listrep | cytut -d# -f1,3

Charles#3
Josh#1
Anne#12
Eve#11
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ wc -l cat listrep | wc -l
4
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ toecoho to avoid this:
to avoid this:
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ wdc -l listrep
4 listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -t# -k3-,3[1@ [1@ [1@-[1@n listrep | head
Anne#Manson#12#Co
Eve#Carlson#11#Co
Charles#Peterson#3#Je
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -n -t# -k3,3 listrep | head
Charles#Peterson#3#Je
Anne#Manson#12#Co
Eve#Carlson#11#Co
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -t# -k3,3 listrep | head
Charles#Peterson#3#Je
Josh#Owen#1#Co
Anne#Manson#12#Co
Eve#Carlson#11#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -t# -k3 listrep | head[1@-[1@n[1@
Anne#Manson#12#Co
Eve#Carlson#11#Co
Charles#Peterson#3#Je
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -n -t# -k3 listrep | head -1
Anne#Manson#12#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sort -r -n -t# -k3 listrep | head -1
Josh#Owen#1#Co
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cd
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ ls -a
.   .bash_logout  Books   examples.desktop  .profile
..  .bashrc       .cache  Pearson
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd McGraw/Web
-bash: cd: McGraw/Web: No such file or directory
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd McGraw/Webpwd
/home/Editorial_MB
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd /home/Editorial_MB/Books/McGraw/Web/
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGraw/WebEditorial_MB@dw1e-VirtualBox:~/Books/McGraw/Web$ ls -l ../../.. | sort -r -n -k
5,5
-rw-r--r-- 1 Editorial_MB Editorial_MB 8980 abr 16  2018 examples.desktop
drwxrwxr-x 3 Editorial_MB Editorial_MB 4096 feb 11 19:21 Books
drwxrwxr-x 3 Editorial_MB Editorial_MB 4096 feb 11 19:19 Pearson
total 20
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGraw/WebEditorial_MB@dw1e-VirtualBox:~/Books/McGraw/Web$ ls -l ../../.. | sort -r -n -k5
5,5
al ../../.. | sort -r -n -k5,5
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGraw/WebEditorial_MB@dw1e-VirtualBox:~/Books/McGraw/Web$ 



-rw-r--r-- 1 Editorial_MB Editorial_MB 8980 abr 16  2018 examples.desktop
drwxr-xr-x 5 Editorial_MB Editorial_MB 4096 feb 11 19:19 .
drwxr-xr-x 4 root         root         4096 feb 11 19:18 ..
drwxrwxr-x 3 Editorial_MB Editorial_MB 4096 feb 11 19:21 Books
drwxrwxr-x 3 Editorial_MB Editorial_MB 4096 feb 11 19:19 Pearson
drwx------ 2 Editorial_MB Editorial_MB 4096 feb 11 19:19 .cache
-rw-r--r-- 1 Editorial_MB Editorial_MB 3771 abr  4  2018 .bashrc
-rw-r--r-- 1 Editorial_MB Editorial_MB  807 abr  4  2018 .profile
-rw-r--r-- 1 Editorial_MB Editorial_MB  220 abr  4  2018 .bash_logout
total 44
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGraw/WebEditorial_MB@dw1e-VirtualBox:~/Books/McGraw/Web$ cd ..
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv pag*.html WEeb/
mv: cannot stat 'pag*.html': No such file or directory
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv pag*.html Web/[1@1[1@{[1@,[1@2[1@,[1@3[1@}
mv: cannot stat 'pag1.html': No such file or directory
mv: cannot stat 'pag2.html': No such file or directory
mv: cannot stat 'pag3.html': No such file or directory
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ ls
Printed  Web
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ cd mv lsmv pag{1,2,3}.html Web/*[1@.[1@.[1@/
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ ls
Printed  Web
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ ls ..
listco  listJ  listrep  listrep_ord  McGraw
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv ../listoco ../Pearson/weWeb/listPe
arson
mv: cannot move '../listco' to '../Pearson/Web/listPearson': No such file or directory
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv ../listco ../Pearson/Web/listPea
arson
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ ls ..

mv ../pag*.html Web/lsmv pag{1,2,3}.html Web/*[6@{1,2,3}lsmv ../pag*.html Web/ls ..mv ../listco ../Pearson/Web/listPea
arson
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ 

cd ,,..
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ nv ku¡mv listco /PeaPEearson/Web../Pearson/WEweeb/listPeraarson
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cp .Mc/MCcGraw/Web/*.html ./PeeaPe ./Pearson./Pearson/wWeb/
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cp listJ McGraw/Printed/listPrinted
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ mv listJ $HOME/listjJJ
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ cd McGraw/
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv Printed/ eBook/
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ mv ../Pe../Pearson/Web/ ../
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ cp Web/ ../../Pearson/WebBK
cp: -r not specified; omitting directory 'Web/'
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ cp Web/ ../../Pearson/WebBK[1@-[1@r[1@
]0;Editorial_MB@dw1e-VirtualBox: ~/Books/McGrawEditorial_MB@dw1e-VirtualBox:~/Books/McGraw$ exit
logout
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# useradd -d /home/Editorial_MB/Books/McGraw/ -s
 /bin/bash -g Editorial_MB mcgraw_mb
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# passwd macgraw_mb
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# login mcgraw_mb
Password:
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage


 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch

0 packages can be updated.
0 updates are security updates.


The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

mcgraw_mb@dw1e-VirtualBox:~$ exit
logout
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# groupadd test
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# usermod -a -G test mcgraw_mb
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# groupm
groupmems  groupmod
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# groupmod -g 1111 test
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# groups mcgraw_mb
mcgraw_mb : Editorial_MB test
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# groups mcgraw_mbcat /etc/group
root:x:0:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:syslog,dw1e
tty:x:5:
disk:x:6:
lp:x:7:
mail:x:8:
news:x:9:
uucp:x:10:
man:x:12:
proxy:x:13:
kmem:x:15:
dialout:x:20:
fax:x:21:
voice:x:22:
cdrom:x:24:dw1e
floppy:x:25:
tape:x:26:
sudo:x:27:dw1e,Editorial_MB
audio:x:29:pulse
dip:x:30:dw1e
www-data:x:33:
backup:x:34:
operator:x:37:
list:x:38:
irc:x:39:
src:x:40:
gnats:x:41:
shadow:x:42:
utmp:x:43:
video:x:44:
sasl:x:45:
plugdev:x:46:dw1e
staff:x:50:
games:x:60:
users:x:100:
nogroup:x:65534:
systemd-journal:x:101:
systemd-network:x:102:
systemd-resolve:x:103:
input:x:104:
crontab:x:105:
syslog:x:106:
messagebus:x:107:
netdev:x:108:
mlocate:x:109:
ssl-cert:x:110:
uuidd:x:111:
avahi-autoipd:x:112:
bluetooth:x:113:
rtkit:x:114:
ssh:x:115:
lpadmin:x:116:dw1e
whoopsie:x:117:
scanner:x:118:saned
saned:x:119:
pulse:x:120:
pulse-access:x:121:
avahi:x:122:
colord:x:123:
geoclue:x:124:
gdm:x:125:
dw1e:x:1000:
sambashare:x:126:dw1e
vboxsf:x:999:
Editorial_MB:x:1001:
test:x:1111:mcgraw_mb
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# login Editorial_MB
Password:
Last login: lun feb 11 19:19:23 CET 2019 on pts/0
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage


 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch

0 packages can be updated.
0 updates are security updates.

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ ls
Books  examples.desktop  listJJ  Pearson
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ tree
.
├── Books
│   ├── listrep
│   ├── listrep_ord
│   ├── McGraw
│   │   ├── eBook
│   │   │   └── listPrinted
│   │   └── Web
│   │       ├── pag1.html
│   │       ├── pag2.html
│   │       └── pag3.html
│   └── Web
│       ├── listPearson
│       ├── pag1.html
│       ├── pag2.html
│       └── pag3.html
├── examples.desktop
├── listJJ
└── Pearson
    └── WebBK
        ├── pag1.html
        ├── pag2.html
        └── pag3.html

7 directories, 15 files
]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd Books/
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ chmod 7534 listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ ls -l listrep
-rwxr-xr-- 1 Editorial_MB Editorial_MB 73 feb 11 19:20 listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ ecgi itgeho oter her way would be echmod u=rwx,g=rx,
o=r listrep
other way would be chmod u=rwx,g=rx,o=r listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ chmod go-x listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ ls -l listrep
-rwxr--r-- 1 Editorial_MB Editorial_MB 73 feb 11 19:20 listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ chown mcgraw:test listrep
chown: invalid user: ‘mcgraw:test’
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ chown mcgraw:test listrep[1@_[1@m[1@b
chown: changing ownership of 'listrep': Operation not permitted
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ suchown mcgraw_mb:test listrepexit
logout
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# ls
Desktop    Downloads         mbassignment.cast  Pictures  Templates
Documents  examples.desktop  Music              Public    Videos
]0;root@dw1e-VirtualBox: /home/dw1eroot@dw1e-VirtualBox:/home/dw1e# cd ..
]0;root@dw1e-VirtualBox: /homeroot@dw1e-VirtualBox:/home# ls
dw1e  Editorial_MB
]0;root@dw1e-VirtualBox: /homeroot@dw1e-VirtualBox:/home# cd Editorial_MB/
]0;root@dw1e-VirtualBox: /home/Editorial_MBroot@dw1e-VirtualBox:/home/Editorial_MB# cd
]0;root@dw1e-VirtualBox: ~root@dw1e-VirtualBox:~# login Editorial_MB
Password:
Last login: lun feb 11 19:34:02 CET 2019 on pts/0
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage


 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch

0 packages can be updated.
0 updates are security updates.

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

]0;Editorial_MB@dw1e-VirtualBox: ~Editorial_MB@dw1e-VirtualBox:~$ cd Books/
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sudo chown mcgraw_mb:test listrep
[sudo] password for Editorial_MB:
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ liss -l listrep
-rwxr--r-- 1 mcgraw_mb test 73 feb 11 19:20 listrep
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ oecho other way would be chown mcgraw list
rep; chgropp test listrep^C
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ usermod usermod -g test mcgraw
usermod: user 'mcgraw' does not exist
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ usermod -g test mcgraw_mb
usermod: Permission denied.
usermod: cannot lock /etc/passwd; try again later.
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sudo usermod -g test mcgraw_mb
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ find .f  -type f -delete
find: ‘./McGraw/.cache’: Permission denied
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ sudo !!
sudo find . -type f -delete
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ tree
.
├── McGraw
│   ├── eBook
│   └── Web
└── Web

4 directories, 0 files
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ rm -rf McGraw
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ tree
.
└── Web

1 directory, 0 files
]0;Editorial_MB@dw1e-VirtualBox: ~/BooksEditorial_MB@dw1e-VirtualBox:~/Books$ exit
logout
]0;root@dw1e-VirtualBox: ~root@dw1e-VirtualBox:~# exit
exit
]0;dw1e@dw1e-VirtualBox: ~dw1e@dw1e-VirtualBox:~$ exit
exit