tag

#signals

2 posts

Shell & TerminalFix September 11, 2026 3 min read

Fixing 'Broken Pipe' Errors in Shell Scripts and Pipelines

A command in the middle of a pipeline suddenly dies with a 'Broken pipe' error, sometimes only when piped into head or a similar early-exiting command. This is a specific, well-defined signal, not a random failure.

#fix#pipes#signals

Shell & TerminalDeep Dive August 29, 2026 3 min read

Job Control: How Shells Manage Foreground and Background Processes

Ctrl-Z, bg, fg, and the & at the end of a command all touch the same underlying mechanism — a shell feature that manages which processes can read your keyboard input at any given moment.

#deep-dive#job-control#processes