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Top Forums Shell Programming and Scripting Execute a function in background and then suspend it Post 302660429 by Corona688 on Friday 22nd of June 2012 12:42:25 PM
Old 06-22-2012
I don't think this will be a reliable way to control the subshell. It can still be woken by other things like SIGCHLD which you have no control over.

I don't know why you'd even want to, anyway -- why run something only to immediately halt it? Why not run it when you actually want it to run, no sooner?
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suspend(1)							   User Commands							suspend(1)

NAME
suspend - shell built-in function to halt the current shell SYNOPSIS
sh suspend csh suspend ksh suspend DESCRIPTION
sh Stops the execution of the current shell (but not if it is the login shell). csh Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su. ksh Stops the execution of the current shell (but not if it is the login shell). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5) SunOS 5.10 15 Apr 1994 suspend(1)
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