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Top Forums Shell Programming and Scripting help with if clause in bash script Post 302468785 by Corona688 on Wednesday 3rd of November 2010 08:28:27 PM
Old 11-03-2010
Or just a shorter pipe chain in bash. using egrep lets you match more complicated expressions, and using the -o option tells it to print only the matching part.

Code:
zegrep -o "DHCPDISCOVER xid=0x[a-z0-9]+" < logfile.gz | sort | uniq -c

---------- Post updated at 06:28 PM ---------- Previous update was at 06:21 PM ----------

Quote:
If the command cannot find any discover for a mac address, the output should look like ...
Are you trying to match data to some existing format? Why store a lack of data?
 

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FC-MATCH(1)															       FC-MATCH(1)

NAME
fc-match - match available fonts SYNOPSIS
fc-match [ -asvVh ] [ --all ] [ --sort ] [ --verbose ] [ [ -f format ] [ --format format ] ] [ --version ] [ --help ] [ pattern [ element... ] ] DESCRIPTION
fc-match matches pattern (empty pattern by default) using the normal fontconfig matching rules to find the best font available. If --sort is given, the sorted list of best matching fonts is displayed. The --all option works like --sort except that no pruning is done on the list of fonts. If any elements are specified, only those are printed. Otherwise short file name, family, and style are printed, unless verbose output is requested. OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. -a Displays sorted list of best matching fonts, but do not do any pruning on the list. -s Displays sorted list of best matching fonts. -v Print verbose output of the whole font pattern for each match, or elements if any is provided. -f Format output according to the format specifier format. -V Show version of the program and exit. -h Show summary of options. pattern Displays fonts matching pattern (uses empty pattern by default). element If set, the element property is displayed for matching fonts. SEE ALSO
fc-list(1) FcFontMatch(3) FcFontSort(3) FcPatternFormat(3) fc-cat(1) fc-cache(1) fc-pattern(1) fc-query(1) fc-scan(1) The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html. AUTHOR
This manual page was updated by Patrick Lam <plam@csail.mit.edu>. Aug 13, 2008 FC-MATCH(1)
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