category 05 / 10

Processes & jobs

Ports, PIDs, background jobs, and stopping things cleanly.

004

entries

4 min

avg read

all 004 debugging 003 time 001 performance 001 cpu 001 kill 001 signals 001 pids 001 scripting 001 ps 001 memory 001 rss 001 lsof 001 ports 001

048Find out whether a slow command is working or waitingtime du -sh /usr2026-10-264 min 041Check whether a process is still alive without sending it anythingkill -0 4721 && echo alive || echo gone2026-10-123 min 021Find the process that is quietly eating your memoryps -eo pid,ppid,rss,etimes,pcpu,comm --sort=-rss | head -112026-09-144 min 005Find out which process is sitting on port 8080lsof -nP -iTCP:8080 -sTCP:LISTEN2026-08-203 min

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