How can i know details about the processes running in Unix and what is the use of fork command in Unix.
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How can i know details about the processes running in Unix and what is the use of fork command in Unix.
use the command 'ps' or 'ps -A' to view all processes. fork is the system call to start new process in unix.
you also can do a top to see what process is taking up the most CPU usage.
also ps -aef |grep (PID)
to find the process..
PS always required before you kill the process,
so it is a very important command in Unix.
Ex- kill ' process ID'
Is there any command to make recovery boot tape to restore to another machine
[QUOTE=jageesh;13247]How can i know details about the processes running in Unix and what is the use of fork command in Unix.[/QUOTE]
Ans:-
1> ps ax (or -ax) | grep "PID" ==>> details about process
2> By using fork() system call only we can create child process
Thanks,
-Amaresh
:cool:
1) ps -aef |grep (PID)
2) fork command are mainly use for the creating the process and
syntax for creating the fork is p_fork(int id)........
and there is a P_join command is for killing the child process
how to know the parent process ?
while parent process id always 0.....
we can use more than fork in our program.....ok:)
i hv written one script for kill many process in one shot..
#!/usr/bin/ksh -x
while (( $# >=1 ))
do
kill -9 $1
print "Process has been killed; "$1
shift
done
how to know all the commands in unix
plz go to /user/bin dir
To know about all the commands in unix..
Refer this site [url=http://docs.hp.com/en/B2355-90680/pt02.html]Part*II*Section 1: Commands[/url]
One more way..
Just hold the Tab key for a while it will asks for possibilities:Say Y
You will get the list of commands.
[QUOTE=jageesh;13247]How can i know details about the processes running in Unix and what is the use of fork command in Unix.[/QUOTE]
Hi,
TOP and ps -ef are the commands to check the the processes which are running on a machine.. and TOP gives how much resources, each process is taking on system...
and fork is user to create some child processes.
. What is shell? What its purpose. Explain the different shells of UNIX