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Top Forums Shell Programming and Scripting Compare two files and output diff to third file Post 302239890 by altamaha on Wednesday 24th of September 2008 04:07:02 PM
Old 09-24-2008
Thanks Franklin.... just what I needed. I had to use another version of grep to allow the -f to work.

Code:
/usr/xpg4/bin/grep -v -f $file2 $file1 > $file3

danmero,

I did search and came up with lots of hits, and I tried several of them, using comm, uniq, diff, etc. I felt I needed to show my utility to the group and someone would see my simple processes and help me keep it that way. I would love to be able to just sit down and sream out some perl code, but I am a few lessons short of that at this time.

Thanks again to all of this board. You have helped me every time I came to you.

JB
 

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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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