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Top Forums UNIX for Dummies Questions & Answers Importance of \ [ ] + ? in grep Post 302353794 by thanhdat on Wednesday 16th of September 2009 08:46:35 AM
Old 09-16-2009
Did you test on your system, what did those commands return ?
In my test (with debian 5) it should be :
Code:
$cat test
1234
12qbc
1222 345345
12ABC!!

$egrep -o "12[0-9]+" test
1234
1222

And this command should be translated to : find all numbers starting with 12
 

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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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