Sends string to the currently selected filehandle, reads the user's response, and returns the response. Takes the following arguments:
The prompt for user input.
The array of words against which the user's input is matched.
If any of the following characters are included in the user's response to prompt_string, they are treated as special characters:
Does word completion, matching what the user has typed so far against the list of strings in completion_list. On a unique match, outputs the rest of the matched string and waits for the user to press the return key. Otherwise, leaves partial input unchanged and sounds the bell.
Prints all possible completions of the user's partial input, or the
entire completion list if the partial input string is null, and reissues
the prompt string and the partial input. Redefine by setting the
Erases any partial input. Redefine by setting the variable
Delete and backspace characters; both erase one character from the
partial input string. Redefine by setting the variables