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Unix Shell Scripting $!

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Name: ShellscriptSearch
Date: April 29, 2009 at 01:38:51 Pacific
OS: Windows XP
Subcategory: General
Comment:

Hi,

Can anybody explain what is mean by WAIT=WAIT" "$!

Thanks in advance



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Response Number 1
Name: user57
Date: April 29, 2009 at 05:21:46 Pacific
Reply:

The variable $! contains the process ID number of the last
command sent to the background, for example:
$ sleep 90 &
[1] 8856
$ kill -9 $!

WAIT=WAIT" "$!

The above statement is an example of variable assignment and equal to the value of the variable WAIT, followed by a space, followed by the value of $!


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