Practical no 5
Practical Title:Execute process commands
ps:-
dell@dell-OptiPlex-5000:~$ ps
PID TTY TIME CMD
7416 pts/0 00:00:00 bash
7431 pts/0 00:00:00 ps
ps -a
dell@dell-OptiPlex-5000:~$ ps -a
PID TTY TIME CMD
5379 tty2 00:00:02 Xorg
5388 tty2 00:00:00 gnome-session-b
7432 pts/0 00:00:00 ps
ps -u
dell@dell-OptiPlex-5000:~$ ps -u
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME
COMMAND
dell 5377 0.0 0.0 164024 6476 tty2 Ssl+ 15:35 0:00 /usr/lib/gdm3
dell 5379 2.0 0.9 494392 76896 tty2 Sl+ 15:35 0:02 /usr/lib/xorg
dell 5388 0.0 0.1 188220 13784 tty2 Sl+ 15:35 0:00 /usr/libexec/
dell 7416 0.0 0.0 10752 4972 pts/0 Ss 15:37 0:00 bash
dell 7433 0.0 0.0 11496 3264 pts/0 R+ 15:37 0:00 ps -u
ps -f
dell@dell-OptiPlex-5000:~$ ps -f
UID PID PPID C STIME TTY TIME CMD
dell 7416 7408 0 15:37 pts/0 00:00:00 bash
dell 7435 7416 0 15:38 pts/0 00:00:00 ps -f
sleep
dell@dell-OptiPlex-5000:~$ sleep 5;cal
September 2024
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
dell@dell-OptiPlex-5000:~$ sleep 2;time
real 0m0.000s
user 0m0.000s
sys 0m0.000s
wait
dell@dell-OptiPlex-5000:~$ man wait
Practical no:6
Practical Title:-Execute file and directory manipulation
commands
ls:-
dell@dell-OptiPlex-5000:~$ ls
22516_operating-systems-mail-8-5-19-1.pdf calender.text
employee.txt if.sh pardeshi p.txt secure Tanvi
dir:-
dell@dell-OptiPlex-5000:~$ dir
22516_operating-systems-mail-8-5-19-1.pdf calender.text
employee.txt if.sh pardeshi p.txt secure Tanvi
dell@dell-OptiPlex-5000:~$ cat>first
1 sidd
2 rani
3 ram
dell@dell-OptiPlex-5000:~$ cat first
1 sidd
2 rani
3 ram
dell@dell-OptiPlex-5000:~$ cat>second
1 nashik
2 pune
3 nagpur
dell@dell-OptiPlex-5000:~$ cat second
1 nashik
2 pune
3 nagpur
dell@dell-OptiPlex-5000:~$ mv first second
dell@dell-OptiPlex-5000:~$ cat second
1 sidd
2 rani
3 ram
dell@dell-OptiPlex-5000:~$ cat>third
1 patil
2 khode
3 vise
4 pawar
5 sonawane
dell@dell-OptiPlex-5000:~$ cat third
1 patil
2 khode
3 vise
4 pawar
5 sonawane
dell@dell-OptiPlex-5000:~$ cp second third
dell@dell-OptiPlex-5000:~$ cat third
1 sidd
2 rani
3 ram
join:-
dell@dell-OptiPlex-5000:~$ join third second
1 sidd sidd
2 rani rani
3 ram ram
head:-
dell@dell-OptiPlex-5000:~$ head -1 third
1 sidd
tail:-
dell@dell-OptiPlex-5000:~$ tail -1 third
3 ram
remove:-
dell@dell-OptiPlex-5000:~$ rm even
split:-
dell@dell-OptiPlex-5000:~$ split -3 fourth
touch:-
dell@dell-OptiPlex-5000:~$ touch fourth
