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Bash - return values from functions
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This article will show you how to return values from functions in Bash.
Practical examples
1. By setting the result to a global variable
#!/bin/bash
my_function() {
result="sample value"
}
my_function
echo $result
Output:
sample value
Note:
Remember that using global variables is not a safe solution, especially when you are creating a large project.
2. Better solution - use local variables in your function
#!/bin/bash
my_function() {
local local_result="sample value"
echo "$local_result"
}
result=$(my_function)
echo $result
Output:
sample value
Note:
`my_funciton`is an alternative notation to$(my_function).