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Top Forums Shell Programming and Scripting Comparing Negative Numbers with If/Else Post 302540425 by kshji on Wednesday 20th of July 2011 02:37:24 PM
Old 07-20-2011
sh is "generic" today. More safety is tell the shell from group ksh, bash, dash. Then you have maybe that shell.
Code:
#!/usr/bin/ksh # or bash or dash

But next will work in any posix shell and bourne shell
Code:
[ "$ValA" -lt 0 ] && echo "negative" || echo "positive"

 

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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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