Bash Functions Return Value. How To Use Bash Functions In Scripts For Reusable Code In computer a shell function name can take an input, $1 and return back the value (true or false) to the script The examples below describe these different mechanisms.
Pass arguments into a function Linux Bash Shell Scripting Tutorial Wiki from bash.cyberciti.biz
Although there exists a return statement, it can only be used to explicitly set the exit status code of a function function_name: This is the name you give to your function
Pass arguments into a function Linux Bash Shell Scripting Tutorial Wiki
In other words, you can return from a function with an exit status They allow us to retrieve a value from a function and utilize it in other parts of the script It follows the same rules as variable names in Bash.
Bash Return Understanding Function Returns in Bash. Bash return values should probably be called "return codes" because they're less like standard return values in scripting, and more like numeric shell command exit codes (you can do stuff like somefunction && echo 'success').If you think of a function like just another command, it makes sense; commands don. You might want to convert your return statement to an echo statement - that way your function output could be captured using $() braces, which seems to be exactly what you want.
Bash Return Understanding Function Returns in Bash. Return Values in Bash Functions: This Linux Journal article discusses the concept of return values in Bash functions Let's understand return values from the bash function with examples