Pattern: Missing { to open the function definition
Issue: -
This rule checks for the start of a function definition, but without a function body.
One common cause is that you are trying to call a function by appending parentheses, e.g. foo() like in C. Bash does not use or allow parentheses after a function name to call it. The function foo should be called using just foo like in the example.
If you are declaring a function, make sure it looks like the correct code bellow, and that it does not try to declare any parameters (parameters are instead accessed with $1 and up).
If you are trying to do something else, look up the syntax for what you are trying to do.
Example of incorrect code:
foo() {
echo "hello world"
}
foo()Example of correct code:
foo() {
echo "hello world"
}
fooPOSIX allows the body of a function to be any compound command, e.g. foo() for i; do :; done. Since this usage is rare, ShellCheck requires the body to be {} (or ()). This additional structure requirement helps improve error messages and suggestions by not parsing down a path that less advanced users wouldn't expect.