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Full Discussion: Tar archives monthly
Top Forums Shell Programming and Scripting Tar archives monthly Post 302949523 by Don Cragun on Sunday 12th of July 2015 04:17:07 PM
Old 07-12-2015
There are a couple of strange things with the command line:
Code:
find /tmp/w/ -type f   -newermt '2014-03-01' ! -newermt '2014-04-01' | xargs tar -czvf files03.tar

  1. By convention, a gzipped file should have .gz as its final suffix; not .tar.
  2. The reason for using xargs command (or find ... -exec command +) is to run the given command as many times as are needed to meet ARG_MAX limitations. But, if you invoke tar multiple times with the -c option, your output file will be recreated from scratch on each invocation (wiping out the data stored in the previous invocation). You could get around that problem if you remove your output file before you start and use tar -r instead of tar -c, but on many systems you can't use the -z option with -r.
If you use pax instead of tar to create the archive, you can feed it the names of files to be processed through its standard input instead of worrying about command line argument length limits. So you might want to try something more like:
Code:
find /tmp/w/ -type f -newermt '2014-03-01' ! -newermt '2014-04-01' | pax -w | gzip > files03.tar.gz

This User Gave Thanks to Don Cragun For This Post:
 

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