Capturing a PID.

[Tom Bradford]

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Don Harrop wrote:
> Does anyone have ideas on how to capture the pid of a program into a file as it starts up?  When you execute your program with the "&" (background process) the shell spits out the process id but I can't seem to redirect that out put to a file.  I don't want to use "pidof" after the fact either in case there is another process running with the same name.

Try this:

<your command> &
echo $! > program.pid

$! is the most recent program executed.
$$ is the current shell script

I've attached a copy of dbXML's startup script and its SYSV wrapper for
a better example.

--Tom

-- 
Tom Bradford --- The dbXML Project --- http://www.dbxml.org/
We store your XML data a hell of a lot better than /dev/null
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