Pattern: Declaring parameters in shell script
Issue: -
Shell script functions behave just like scripts and other commands:
- They always take a 0 to N parameters, referred to with
$1,$2etc. They can not declare parameters by name. - They are executed using
name arg1 arg2, and not with parentheses as C-like languages.
Example of incorrect code:
foo(input) {
echo "$input"
}
foo("hello world");Example of correct code:
foo() {
echo "$1"
}
foo "hello world"