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.
seq 1 10
comm -23 <(seq "$FROM" "$TO") <(ss -tan | awk '{print $4}' | cut -d':' -f2 | grep "[0-9]\{1,5\}" | sort | uniq) | shuf | head -n "$HOWMANY"
up(){ DEEP=$1; for i in $(seq 1 ${DEEP:-"1"}); do cd ../; done; }
upup(){ DEEP=$1; [ -z "${DEEP}" ] && { DEEP=1; }; for i in $(seq 1 ${DEEP}); do cd ../; done; }
seq 5 | shuf
fac() { { echo 1; seq $1; } | paste -s -d\* | bc; }
for j in $(seq 0 255); do for i in $(seq 0 255) ; do seq -f "10.$j.$i.%g" 0 255; done; done