Welcome to bashoneliners.com, a curated collection of practical and well-explained Bash one-liners, snippets, tips and tricks. We aim to make each published one-liner to be of high quality: useful, easy to read, follows best practices, with clear, detailed, accurate explanation. These one-liners should help you automate tasks, troubleshoot problems, whether it be in system administration, file management, networking or programming.
factorial() { local N; eval let N=1 N*={1..$1}; echo "$N"; }
fac() { { echo 1; seq $1; } | paste -s -d\* | bc; }