Long-Running Processes

Reuse before spawning; confirm before killing.

Find Existing Instances

Find processes by project path instead of guessing ports. On macOS, use full-width process output so long commands are not truncated:

ps -ewwo pid,args 2>/dev/null | grep -F "$(pwd)" | grep -v grep

Substitute another project's path for $(pwd) when checking a different project. Processes started with a relative path (e.g. npm run dev) may not show the project path in their arguments — also search by process or script name before concluding nothing is running.

If a matching process is found, inspect its listening ports: