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Full Discussion: Tar help
Top Forums UNIX for Dummies Questions & Answers Tar help Post 302292332 by ShawnMilo on Friday 27th of February 2009 02:15:27 PM
Old 02-27-2009
Okay, then if that log file contains errors in the same format each time, then you can just grep the lines containing the error, parse the filenames you need, and process them separately.

Something like:

Code:
tar -czvf filename.tar.gz files_to_backup 2> error.log && fgrep 'Permission denied' error.log | <something>

Where <something> would be replaced by your script or whatever you use to strip out the file names and then send them to xargs or something.
 

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BZGREP(1)						      General Commands Manual							 BZGREP(1)

NAME
bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression SYNOPSIS
bzgrep [ grep_options ] [ -e ] pattern filename... bzegrep [ egrep_options ] [ -e ] pattern filename... bzfgrep [ fgrep_options ] [ -e ] pattern filename... DESCRIPTION
Bzgrep is used to invoke the grep on bzip2-compressed files. All 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 bzgrep is invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, bzgrep uses it as the grep program to be invoked. For example: for sh: GREP=fgrep bzgrep string files for csh: (setenv GREP fgrep; bzgrep string files) AUTHOR
Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux. SEE ALSO
grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1) BZGREP(1)
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