Question #68

Author: admin
tags: Linux  
Mark the shell functions with the correct syntax.
function say_hello {
  echo 'Hello!'
}
function say_hello() {
  echo 'Hello!'
}
say_hello {
  echo 'Hello!'
}
say_hello() {
  echo 'Hello!'
}
The reserved word function is optional.
If the function reserved word is supplied, the parentheses are optional.
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