A bash script to check whether a string satisfies the requirements for a username.
This repo contains a zip.sh bash script that checks whether a string is a valid 5 digit zip code. It is to be used as the starting point for a script to check whether a string satisfies the requirements for a username.
The requirements for a username are:
- The only characters that can be used are
- lower case letters,
- digits, and
- the underscore character
- It must start with a lower case letter
- It must contain at least three but no more than 12 characters
Copy the zip.sh file to a file named username.sh Edit the username.sh file so that it:
- Contains your name as the author
- Contains the correct name of the file
- Displays the rules to the user
- Prompts to user to type a username
- Checks to see if the string typed by the user obeys the rules.
- Prompts the user to try again if it does not.