pv (pipe viewer)

pv Shell pipeline element to meter data passing through

brew install pv

Examples

• cat /dev/urandom | gzip | pv > /dev/null
• cat /dev/urandom | bzip2 | pv > /dev/null
• cat /dev/urandom | xz | pv > /dev/null
  • cat /dev/urandom | xz -T0 | pv > /dev/null
• pv -petrab /dev/zero > /dev/null

Test network speed:

• pv </dev/zero | ssh REMOTE_SERVER 'cat >/dev/null'

Related

• progress -m
• set -eo pipefail
• Pipe

See also

• cat, tac, more, less, tail, mtail, echo, stdin, tr, column, paste, truncate, logrotate, xzcat pv, progress, sort, ncat, virt-cat, awk, join, col, fold, tee, sponge, nfs-cat, journalctl, ccat, icat, EOF, lolcat
• Performance, monitoring, sysstat, metrics, Telemetry

https://man7.org/linux/man-pages/man1/pv.1.html