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Top Forums Shell Programming and Scripting How come this if statement doesn't work? Post 302775769 by elixir_sinari on Tuesday 5th of March 2013 11:30:12 AM
Old 03-05-2013
Quote:
Originally Posted by rbatte1
What shell are you using? I'm more use to single square brackets, but then I'm happiest in ksh


Robin
Double square brackets do work in ksh and I would say their usage is recommended over their "slimmer" counterparts.
They protect their contents from the shell's globbing.
They also allow you to use variables without double quotes, without the fear of the test breaking.
 

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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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