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Top Forums Shell Programming and Scripting Script problem with deleting data Post 302647121 by joeyg on Sunday 27th of May 2012 12:04:42 PM
Old 05-27-2012
What happens if you manually execute that command?
Or, execute the command without the -v option? Without the -v option, the result would demonstrate what meets the criteria.
Code:
grep -v "stuff" <myfile

should copy all except for lines with "stuff"
while,
Code:
grep "stuff" <myfile

would show you what contains "stuff"

As I read your code, I do not think the grep is analyzing the input file. It is early on a Sunday morning for me, but I think you would want something like:

Code:
grep -v "stuff" <myfile >mynewfile

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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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