• chronic: runs a command quietly unless it fails
  • combine: combine the lines in two files using boolean operations
  • errno: look up errno names and descriptions
  • ifdata: get network interface info without parsing ifconfig output
  • ifne: run a program if the standard input is not empty
  • isutf8: check if a file or standard input is utf-8
  • lckdo: execute a program with a lock held
  • mispipe: pipe two commands, returning the exit status of the first
  • parallel: run multiple jobs at once
  • pee: tee standard input to pipes
  • sponge: soak up standard input and write to a file
  • ts: timestamp standard input
  • vidir: edit a directory in your text editor
  • vipe: insert a text editor into a pipe
  • zrun: automatically uncompress arguments to command

chronic est pratique, notamment pour les crons et la (non-)notification par mail