Run pgrep nginx.
pgrep nginx
Practice signal language without stopping anything.
Server operationspgrepkillps
Click any instruction for the command details, the why, and the common mistake to avoid.
Run pgrep nginx.
pgrep nginx
Run kill 42.
kill 42
Run ps.
ps
Create a free account to sync completed lessons, XP, streaks, course status, and your next lesson across sessions.
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Progress sync stores completion IDs, scores, streaks, badges, and game settings. Terminal contents, editor snippets, lab scratch, email, and real names are never published on leaderboards or share cards.
Practice signal language without stopping anything.
Run the commands in order and compare the outputs.
Junior operators build confidence by gathering evidence before changing systems.
ps
Show training server processes.