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Full Discussion: Dynamic regular expression in nawk
Top Forums Shell Programming and Scripting Dynamic regular expression in nawk Post 302443615 by alister on Monday 9th of August 2010 02:48:38 PM
Old 08-09-2010
Quote:
Originally Posted by steadyonabix
So if I could do something like: -

Code:
regex = "$0 ~ /name/"
if ( regex )
do something

So my question is "is that possible in awk"?
It is possible and common, but your code is incorrect. In your example, the if condition will evaluate to true if the value of regex is any non-null string. What you want is:
Code:
regex="name"
if ($0 ~ regex)
    do something

 

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dh_usrlocal

DH_USRLOCAL(1)							     Debhelper							    DH_USRLOCAL(1)

NAME

       dh_usrlocal - migrate usr/local directories to maintainer scripts

SYNOPSIS

       dh_usrlocal [debhelperoptions] [-n]

DESCRIPTION

       dh_usrlocal is a debhelper program that can be used for building packages that will provide a subdirectory in /usr/local when installed.

       It finds subdirectories of usr/local in the package build directory, and removes them, replacing them with maintainer script snippets
       (unless -n is used) to create the directories at install time, and remove them when the package is removed, in a manner compliant with
       Debian policy. These snippets are inserted into the maintainer scripts by dh_installdeb. See dh_installdeb(1) for an explanation of
       debhelper maintainer script snippets.

       When the Rules-Requires-Root field is not (effectively) binary-targets, the directories in /usr/local will have ownership root:staff and
       the mode will be 02775.	These values have been chosen to comply with the recommendations of the Debian policy for directories in
       /usr/local.

       When Rules-Requires-Root has an effective value of binary-targets, the owners, groups and permissions will be preserved with one exception.
       If the directory is owned by root:root, then ownership will be reset to root:staff and mode will be reset to 02775. This is useful, since
       that is the group and mode policy recommends for directories in /usr/local.

OPTIONS

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	   Do not modify postinst/prerm scripts.

NOTES

       Note that this command is not idempotent. dh_prep(1) should be called between invocations of this command. Otherwise, it may cause multiple
       instances of the same text to be added to maintainer scripts.

CONFORMS TO

       Debian policy, version 2.2

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Andrew Stribblehill <ads@debian.org>

11.1.6ubuntu2							    2018-05-10							    DH_USRLOCAL(1)
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