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Full Discussion: /dev/null file issue
Operating Systems AIX /dev/null file issue Post 302777679 by Peasant on Friday 8th of March 2013 09:32:08 AM
Old 03-08-2013
Real worls example of /dev/null usage with grep on HPUX systems, where grep lacks option to show filename where grep has matched the result.
Code:
find . -type f -exec grep "string" {} /dev/null \;
/root/test/string.txt:string

Sorry for the offtopic.
 

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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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