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Top Forums Shell Programming and Scripting I need to save a pid of a child started with $: su <user> -c “nohup …” Post 302903835 by Chubler_XL on Friday 30th of May 2014 12:12:46 AM
Old 05-30-2014
Try this instead:

Code:
su myuser -c 'nohup ./mydaemon.sh >/dev/null 2>&1 & echo $! > mydaemon.pid'

I think $! is being expanded before su is called.

Also ensure mydaemon.pid and . are writable by myuser
 

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CLI_SET_PROCESS_TITLE(3)						 1						  CLI_SET_PROCESS_TITLE(3)

cli_set_process_title - Sets the process title

SYNOPSIS
bool cli_set_process_title (string $title) DESCRIPTION
Sets the process title visible in tools such as top and ps. This function is available only in CLI mode. PARAMETERS
o $title - The new title. RETURN VALUES
Returns TRUE on success or FALSE on failure. ERRORS
/EXCEPTIONS An E_WARNING will be generated if the operating system is unsupported. EXAMPLES
Example #1 cli_set_process_title(3) example <?php $title = "My Amazing PHP Script"; $pid = getmypid(); // you can use this to see your process title in ps if (!cli_set_process_title($title)) { echo "Unable to set process title for PID $pid... "; exit(1); } else { echo "The process title '$title' for PID $pid has been set for your process! "; sleep(5); } ?> SEE ALSO
cli_get_process_title(3), setproctitle(3). PHP Documentation Group CLI_SET_PROCESS_TITLE(3)
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