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Top Forums Shell Programming and Scripting Help with finding the exit status of a 'nohup' command using 'PID'. Post 302917728 by vbe on Thursday 18th of September 2014 09:49:50 AM
Old 09-18-2014
Well wait will for sure make your loop work in sequence since it will wait the end of execution of $PID...

With the logic you put in your script you wont be able to do anything else but sequential for you are to wait for end of execution to get the return code and if more processes are executed you have no means using $? to get what you want...

Last edited by vbe; 09-18-2014 at 11:40 AM.. Reason: typo...
 

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wait(1) 						      General Commands Manual							   wait(1)

NAME
wait - await process completion SYNOPSIS
[pid] DESCRIPTION
If no argument is specified, waits until all processes (started with of the current shell have completed, and reports on abnormal termina- tions. If a numeric argument pid is given and is the process ID of a background process, waits until that process has completed. Other- wise, if pid is not a background process, exits without waiting for any processes to complete. Because the system call must be executed in the parent process, the shell itself executes without creating a new process (see wait(2)). Command-Line Arguments supports the following command line arguments: The unsigned decimal integer process ID of a command, whose termination is to wait for. WARNINGS
Some processes in a 2-or-more-stage pipeline may not be children of the shell, and thus cannot be waited for. SEE ALSO
csh(1), ksh(1), sh-posix(1), sh(1), wait(2). STANDARDS CONFORMANCE
wait(1)
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