Wait command help


 
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Old 09-24-2009
Wait command help

Hi, Is there any way to know the child process status as and when it finished. If i write like below
nohup sh a1.sh & ### has sleep 20 ;echo a1.sh
nohup sh a2.sh & ### has sleep 10 ;echo a2.sh
nohup sh a3.sh & ### has sleep 5 ;echo a3.sh
wait
This will wait till a1.sh ,a2.sh a3.sh completes. I want to know individual status immediately as it finishes. In the above a3.sh has sleep of 5 , this should come out and display a3.sh. I tried to use wait PID, this command is given one at a time
wait $pid1 ; echo $?
wait $pid2; echo $?
wait $pid3 ; echo $?
Please let me know how this should be done. I don't want wait till all child process finishes. I want it to display as and when it completes. Any help really appreciated.
Thanks
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NOHUP(1)							   User Commands							  NOHUP(1)

NAME
nohup - run a command immune to hangups, with output to a non-tty SYNOPSIS
nohup COMMAND [ARG]... nohup OPTION DESCRIPTION
Run COMMAND, ignoring hangup signals. --help display this help and exit --version output version information and exit If standard input is a terminal, redirect it from /dev/null. If standard output is a terminal, append output to 'nohup.out' if possible, '$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use 'nohup COMMAND > FILE'. NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc- umentation for details about the options it supports. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report nohup translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Jim Meyering. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for nohup is maintained as a Texinfo manual. If the info and nohup programs are properly installed at your site, the command info coreutils 'nohup invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 NOHUP(1)