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linuxshellpidps

"set --" command to parse output of "ps" command on terminal

I have trying to get pid of a process using "set --" as following: say a process is started with command: java -jar someProg.jar

In a shell script, i can get the processId using this way:

#    
pid_=$(ps -axf | grep  someProg | grep -v grep)

set -- $pid_

echo $1
#

Now , I tried to get pid on terminal by writing command as:

ps -axf | grep  someProg | grep -v grep | set -- | echo $1

But I didn't get anything.

How can i get the output pid using set -- command on terminal.

Thanks

Solution

  • What about 

    ps -axf | grep someProg | grep -v grep | awk '{print $1}'

    It shows PID of someProg process...