Kill command in Unix/Linux - with Examples

How to kill a process like opened new file in Linux

[ivreddy@localhost practice]$ ps -ef | grep new
ivreddy   3072     1  3 23:00 ?        00:00:00 gedit

/home/ivreddy/Desktop/new file
ivreddy   3076  2901  1 23:00 pts/0    00:00:00 grep new
[ivreddy@localhost practice]$ kill -9 3072
[ivreddy@localhost practice]$ ps -ef | grep new
ivreddy   3099  2901  0 23:01 pts/0    00:00:00 grep new
[ivreddy@localhost practice]$

How to kill a browser in Linux


[ivreddy@localhost ~]$ ps -ef | grep firefox
ivreddy  26674     1  3 12:49 ?        00:00:10 /usr/lib/firefox-3.6/firefox
ivreddy  26832 26298  0 12:54 pts/1    00:00:00 grep firefox
[ivreddy@localhost ~]$ kill -9 26674
[ivreddy@localhost ~]$ ps -ef | grep firefox
ivreddy  26837 26298  0 12:54 pts/1    00:00:00 grep firefox

Note : Use kill -9 <process id> to kill forcely