• 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

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