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Rarity: uncommon
Anyone who runs systems hears it often; most never noticed.
11 bells on this page
- SIG-003 SIGQUIT Ctrl+\ — ends things like its sibling, but leaves a core dump as a keepsake. Termination uncommon
- SIG-006 SIGSTOP Freezes the process wherever it stands — and takes no refusal. Stop and resume uncommon
- SIG-008 SIGCONT The resume ring: it wakes whatever was frozen. Stop and resume uncommon
- SIG-009 SIGCHLD A child has finished — the one notice parents may ignore guilt-free. Stop and resume uncommon
- SIG-011 SIGBUS Bus error: the address does exist — it's the access that cannot happen. Program faults uncommon
- SIG-012 SIGFPE The “floating-point” exception that is almost never about floating point. Program faults uncommon
- SIG-014 SIGABRT The program gives up on itself: abort() rings its own bell. Program faults uncommon
- SIG-017 SIGALRM The alarm clock: alarm() winds it up and the kernel rings on schedule. Clocks uncommon
- SIG-020 SIGPIPE A write into a pipe with nobody on the other end — which is why head ends the conversation. Resources uncommon
- SIG-023 SIGUSR1 A bell with no factory ring: each program agrees on its own meaning. The user's uncommon
- SIG-025 SIGWINCH The window changed size — the bell that makes the whole terminal redraw. The user's uncommon