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Top Forums UNIX for Dummies Questions & Answers Ksh How to test if variable is numeric?? Post 302299284 by unxwzrd on Thursday 19th of March 2009 06:42:15 PM
Old 03-19-2009
test to see if variable is numeric

You can test the contents of a variable directly using ksh
pattern matching operators:

Code:
x=2763
if [[ $x == +([0-9]) ]]; then
        print okay
 else
        print naga
fi

This test only works with integers but since ksh only supports
integer arithmetic that's usually sufficient. For working with
real numbers, I usually run them through gawk.

(Pretend those underscores are blanks. I refuse to post unindented
code and this editor pushes everything up against the left margin.)

Last edited by vgersh99; 03-19-2009 at 08:19 PM.. Reason: trying to restore indentation (leading blanks) - use BB Codes
 

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DH_AUTO_TEST(1) 						     Debhelper							   DH_AUTO_TEST(1)

NAME
dh_auto_test - automatically runs a package's test suites SYNOPSIS
dh_auto_test [buildsystemoptions] [debhelperoptions] [--params] DESCRIPTION
dh_auto_test is a debhelper program that tries to automatically run a package's test suite. It does so by running the appropriate command for the build system it detects the package uses. For example, if there's a Makefile and it contains a test or check target, then this is done by running make (or MAKE, if the environment variable is set). If the test suite fails, the command will exit nonzero. If there's no test suite, it will exit zero without doing anything. This is intended to work for about 90% of packages with a test suite. If it doesn't work, you're encouraged to skip using dh_auto_test at all, and just run the test suite manually. OPTIONS
See "BUILD SYSTEM OPTIONS" in debhelper(7) for a list of common build system selection and control options. -- params Pass params to the program that is run, after the parameters that dh_auto_test usually passes. NOTES
If the DEB_BUILD_OPTIONS environment variable contains nocheck, no tests will be performed. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_AUTO_TEST(1)
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