bash function return value
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function my_function {
echo "Return value."
}
result=$(my_function)return statement
Beware! Do not use the return statement to return a value. The return statement is used to return exit codes, usually 0 for a normal exit, and 1 if an error occurred within the function. Instead, use the format above.
From help return:
return: return [n]
Return from a shell function.
Causes a function or sourced script to exit with the return value
specified by N. If N is omitted, the return status is that of the
last command executed within the function or script.
Exit Status:
Returns N, or failure if the shell is not executing a function or script.