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40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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====== The exit builtin command ======
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===== Synopsis =====
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<code>exit [N]</code>
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===== Description =====
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The ''exit'' command terminates the current shell (or script).
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If ''N'' is given, the return code to the parent process is set to ''N''. If not, the returned status the the status of the most recently executed command (i.e. ''$?'').
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A [[commands:builtin:trap|trap]] on ''EXIT'' is executed before the shell exits, except the executed ''exit'' command is part of an already running trap.
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==== Options ====
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There are no options.
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==== Exit status ====
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Naturally, you can't ask for the exit status from within the shell that executed the ''exit'' command, because the shell exits.
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^Status ^Reason ^
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|255 |invalid (e.g. non-numeric) argument - this staus is returned to the parent |
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===== Examples =====
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==== Exit the shell and explicitely set its exit status ====
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<code>
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exit 3
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</code>
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===== Portability considerations =====
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* if ''N'' is specified, but its value is not between 0 and 255 inclusively, the exit status is undefined.
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===== See also =====
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* [[commands:builtin:trap|The trap builtin command]]
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* [[dict:terms:exit_status|The exit status]]
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