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Top Forums Shell Programming and Scripting Extracting unique values of a column from a feed file Post 302894023 by Scrutinizer on Sunday 23rd of March 2014 06:30:55 AM
Old 03-23-2014
@ahamed, there would be an issue if $16=0, also there was an issue with BSD awk which did not print everything.. Rearranging your script like this, worked though:
Code:
awk -F'|' '{$0=$16}NR>1' infile | sort -u

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repo-rss(1)															       repo-rss(1)

NAME
repo-rss - generates an RSS feed from one or more Yum repositories SYNOPSIS
repo-rss [options] repoid1 [repoid2...] DESCRIPTION
repo-rss is a program for generating RSS feeds for one or more Yum repositories. GENERAL OPTIONS
-h, --help Help; display a help message and then quit. -f <file> Specify the file to which the RSS will be written. Default is repo-rss.xml. -l <link> Specify the URL to the RSS feed. Default is http://yum.baseurl.org/. -t <title> Specify the title for the RSS feed. Default is "RSS Repository - Recent Packages". -d <description> Specify the description of the RSS feed. Default is "Most recent packages in Repositories". -r <days> Specify the number of days to consider most recent. Default is 3. --tempcache Enable the use of a temporary directory for the yum cache. This is enabled by default for non-root users. EXAMPLES
Generate an RSS for the updates-released repository and save it as updates-release.xml: repo-rss -f updates-released.xml updates-released FILES
As repo-rss uses YUM libraries for retrieving all the information, it relies on YUM configuration for its default values like which reposi- tories to use. Consult YUM documentation for details: /etc/yum.conf /etc/yum/repos.d/ /var/cache/yum/ SEE ALSO
yum.conf (5) http://yum.baseurl.org/ AUTHORS
See the Authors file included with this program. BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs. Seth Vidal 2005 repo-rss(1)
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