moreutils

“a growing collection of the unix tools that nobody thought to write thirty years ago”

• errno - look up errno names and descriptions
• ifdata - get network interface info without parsing ifconfig output
• ifne - Run command if the standard input is not empty
• isutf8 - check whether files are valid UTF-8
• lckdo - run a program with a lock held (see also flock)
• mispipe - pipe two commands, returning the exit status of the first
• moreutils_parallel - run programs in parallel
• sponge - soak up standard input and write to a file
• pee - tee standard input to pipes