https://joeyh.name/code/moreutils/

• 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

• Moreutils \- A Collection Of More Useful Unix Utilities \- OSTechNix
• moreutils: the utilities package every UNIX/Linux/Mac OS developer should know \- Clean Coding

• List::MoreUtils \- Provide the stuff missing in List::Util \- metacpan\.org