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Top Forums Shell Programming and Scripting Asynchronous shell scripts question - newbie Post 302482883 by fpmurphy on Wednesday 22nd of December 2010 09:41:31 PM
Old 12-22-2010
Here is a simple example which should explain things to you.
Code:
#!/bin/bash

async1()
{
   sleep 5
   echo "from async 1"
   sleep 5
   echo "async 1 finished"
}

async2()
{
   sleep 3
   echo "from async 2"
   sleep 4
   echo "async 2 finished"
}

echo "main before"
async1 &
apid1=$!
async2 &
apid2=$!

echo "main PID=$$ asynch1 PID=$apid1 asynch2 PID=$apid2" 
wait $apid1 $apid2
echo "main after"   
exit 0

This User Gave Thanks to fpmurphy For This Post:
 

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ADSL-SETUP(8)						      System Manager's Manual						     ADSL-SETUP(8)

NAME
adsl-setup - Shell script to configure Roaring Penguin PPPoE client SYNOPSIS
adsl-setup DESCRIPTION
adsl-setup is a shell script which prompts you for various pieces of information and sets up an /etc/sysconfig/network-scripts/ifcfg-ppp0 configuration script for the adsl-start, adsl-stop and adsl-connect scripts. AUTHOR
adsl-setup was written by David F. Skoll <dfs@roaringpenguin.com>. The pppoe home page is http://www.roaringpenguin.com/pppoe/. SEE ALSO
pppoe(8), adsl-start(8), adsl-stop(8), adsl-connect(8), pppd(8), pppoe.conf(5), adsl-status(8), pppoe-sniff(8), pppoe-relay(8), pppoe- server(8) 4th Berkeley Distribution 21 February 2000 ADSL-SETUP(8)
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