ps option to list all child processes...

[schocku]

I have a main.ksh that executes a perl script and which in turn spawns child ksh processes and awk scripts. I have main.ksh in crontab to run every 10 mins.

Is there a way to make sure that neither an earlier version of main.ksh or ANY OF ITS CHILD PROCESSES are running when crontab starts main.ksh.

Basically is there a ps option that lists out all the child processes of a parent process ?

Thanks for your help.

 

[PHV]

Try something like this:

ps -fe | awk '
function child(id  ,i){
 print line[id]
 for(i in ppid) if(ppid[i]==id) child(i)
}
{ppid[$2]=$3;line[$2]=$0}
/main.ksh/{if($2!='$$') pid=$2}
END{if(pid) child(pid)}
'

Hope This Help
PH.