lnx2

1.
bartek@lapmap:~$ mkdir 152133
bartek@lapmap:~$ ls
152133     examples.desktop  Obrazy   Publiczny  Szablony
Dokumenty  Muzyka            Pobrane  Pulpit     Wideo

2.
bartek@lapmap:~$ cd 152133
bartek@lapmap:~/152133$ touch test1.txt
bartek@lapmap:~/152133$ chmod u-w test1.txt
bbartek@lapmap:~/152133$ cat > test1.txt
bash: test1.txt: Brak dostępu
bartek@lapmap:~/152133$ ls -l test1.txt
-r--r--r-- 1 bartek bartek 11 lis  7 23:06 test1.txt

3.
bartek@lapmap:~/152133$ rm test1.txt
rm: usunąć zabezpieczony przed zapisem zwykły plik 'test1.txt'?
bartek@lapmap:~/152133$ chmod u+w test1.txt
bartek@lapmap:~/152133$ rm test1.txt
bartek@lapmap:~/152133$ ls
bartek@lapmap:~/152133$

4.
bartek@lapmap:~/152133$ touch test2.txt
bartek@lapmap:~/152133$ touch test3.txt
bartek@lapmap:~/152133$ cat > test2.txt
tresc test2^Z
[7]+  Zatrzymano              cat > test2.txt
bartek@lapmap:~/152133$ cat > test3.txt
tresc test2^Z
[8]+  Zatrzymano              cat > test3.txt
bartek@lapmap:~/152133$ ls -l test2.txt
-rw-r--r-- 1 bartek bartek 0 lis  7 23:13 test2.txt
bartek@lapmap:~/152133$ ls -l test3.txt
-rw-r--r-- 1 bartek bartek 0 lis  7 23:13 test3.txt
a) bartek@lapmap:~/152133$ chmod a-r test2.txt
bartek@lapmap:~/152133$ chmod a-w test2.txt
bartek@lapmap:~/152133$ ls -l test2.txt
---------- 1 bartek bartek 0 lis  7 23:14 test2.txt
b) bartek@lapmap:~/152133$ chmod a-r test3.txt
bartek@lapmap:~/152133$ chmod a-x test3.txt
bartek@lapmap:~/152133$ ls -l test3.txt
--w------- 1 bartek bartek 0 lis  7 23:15 test3.txt