plakar gzcat reads gzip-compressed files from within snapshots and writes to the standard output,
similarly to the standard Unix command gzcat(1),
without holding the files in memory or requiring a complete file restore first:
it is fast and suitable for large files.
plakar gzcat snapshotID:/path/to/file.gz [snapshotID:/path/to/file.gz]
Using grep to search for lines containing mda in the /var/log/maillog.0.gz file of snapshot c5,
then using wc to count how many lines are in that file:
$ plakar gzcat c5:/var/log/maillog.0.gz | grep mda
[...]
$ plakar gzcat c5:/var/log/maillog.0.gz | wc -l
453