Exit a function with the return value specified by n.
Syntax return [n] Key n The value to return
If n is omitted, the return status is that of the last command executed in the function body.
If used outside a function, but during execution of a script by the . (source) command, it causes the shell to stop executing that script and return either n or the exit status of the last command executed within the script as the exit status of the script.
If used outside a function and not during execution of a script by ., the return status is false.
Any command associated with the RETURN trap is executed before execution resumes after the function or script.
return is a bash builtin command.
set - Set a shell variable = value
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