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.
watch -d -n 1 'ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head'
ps -ef |awk '{ print $2 }' \ |tail -n +2 \ |while read pid; do echo "$pid $(lsof -p $pid |wc -l)"; done \ |sort -r -n -k 2 \ |while read pid count; do echo "$pid $count $(ps -o command= -p $pid)"; done
lsof -i :8080 | awk '{l=$2} END {print l}' | xargs kill
lsof -i :8080 | awk 'NR > 1 {print $2}' | xargs --no-run-if-empty kill
lsof -i :8080 | awk '{print $2}' | tail -n 1 | xargs kill
screen -d -m -S some_name ping my_router
lsof -n