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Full Discussion: Grep show file name once
Top Forums UNIX for Advanced & Expert Users Grep show file name once Post 302899134 by MadeInGermany on Sunday 27th of April 2014 10:44:36 AM
Old 04-27-2014
Pipe your grep to this post processor
Code:
awk '$0=="--" {print; next} {fname=line=$0; sub(/[:-].*/,"",fname); sub(/.*[:-]/,"",line)} fname!=oldfname {print "File="fname; oldfname=fname} {print line}'

 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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