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notes: add signals section (WIP - needs to be investigated further)

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Khaïs COLIN 2025-02-11 15:53:38 +01:00
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NOTES.md
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@ -530,6 +530,19 @@ usage, generally invalid options or missing arguments.
The exit status of the last command is available in the special parameter $?. The exit status of the last command is available in the special parameter $?.
#### Signals
cf. 3.7.6 Signals
When Bash is interactive, it ignores 'SIGTERM' (so that 'kill 0' does not kill
an interactive shell), and 'SIGINT' is caught and handled. When Bash receives a
'SIGINT', it breaks out of any executing loops. In all cases, Bash ignores
'SIGQUIT'. Bash ignores 'SIGTTIN', 'SIGTTOU', and 'SIGTSTP'.
NOTE: The behaviour on when ^C is printed seems strange, investigate further
once we implement this
TODO: investigate this further, this seems very complicated
## Definitions ## Definitions
cf. [Bash Reference Manual](https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#Definitions) cf. [Bash Reference Manual](https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html#Definitions)
cf. 2 Definitions cf. 2 Definitions