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Grep expression between double quotes
Post 302382675 by radoulov on Thursday 24th of December 2009 08:40:57 AM
12-24-2009
x is for NULL(or empty) string 
It's an uninitialized variable.
You can use "" if you find it more readable. x is just shorter.
It's an uninitialized variable.You can use "" if you find it more readable. x is just shorter.
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BTI-SHRINK-URLS(1) bti-shrink-urls BTI-SHRINK-URLS(1) NAME
bti-shrink-urls - convert URLs to a shorter form using a web service SYNOPSIS
bti [--escaped] [--help] [URL] DESCRIPTION
bti-shrink-urls converts URLs to a shorter form using a web service. Currently http://2tu.us/ (default) and http://bit.ly / http://j.mp are supported. OPTIONS
--escaped Don't escape special characters in the URL any more, they are already percent encoded. --help Print help text. URL Specify the URL to be converted. If no URL is given bti-shrink-urls waits for input on stdin. CONFIGURATION
bti-shrink-urls is configured by setting some values in ~/.bti: shrink_host Possible values: 2tu.us (default), bit.ly, j.mp shrink_bitly_login API login for bit.ly, j.mp, required if shrink_host is set to bit.ly or j.mp. See https://code.google.com/p/bitly-api/wiki/ApiDocumentation shrink_bitly_key API key for bit.ly, j.mp, required if shrink_host is set to bit.ly or j.mp. See https://code.google.com/p/bitly-api/wiki/ApiDocumentation AUTHOR
Written by Bart Trojanowski bart@jukie.net. COPYRIGHT AND LICENSE
Copyright (C) 2009 Bart Trojanowski bart@jukie.net. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License. bti-shrink-urls March 2009 BTI-SHRINK-URLS(1)