==== count number of lines in a txz file ====
<code>
xz -cd foo.txz | wc -l
</code>

<code>
for i in *.txz; do echo $i; xz -cd $i | wc; done
</code>

==== file extensions ====
  * tar gzip compressed - .tgz
  * tar bzip2 compressed - .tar.bz2, .tar.bz, .tbz
  * tar xz compressed - .txz

==== sample commands ====
<code>
tar cJvf foo.txz foo
</code>

==== convert tgz to txz ====
<code>
cat foo.tgz | gzip -cd | xz > foo.txz
</code>

To do the other way around
<code>
cat foo.txz | xz -cd | gzip > foo.tgz
</code>

Ref:- http://lowfatdaemon.blogspot.com/2012/01/how-to-repackage-txz-to-tgz-slackware.html

tags | change compression algorithm of a tar archive

==== internal links ====
  * [[Relative file names in a tar archive]]