I know I can write bash scripts like:

foo() {
  echo $1;

but can I define a function that writes:

foo(string) {
  echo $string;

I just can't find my way out of this.


The only available form is the first one; see the manual for details.

To use named parameters, the traditional technique is to assign them at the start of your function:

foo() {
  # ...
  echo "${string}"

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