In a real scenario, this could be anything like downloading files, creating backup, validating user input, etc. Also, to give an example we are assuming only four steps in our script below which is ...

Remove every occurrence of that particular character in the user input and compare it to the original. If they're the same ... To test for length, it's easy to use wc -c, but there's a special ...

But shell scripts are so 1980’s — if you are into some kind of retro-computing, have at it. My advice is to invest your precious brain cells elsewhere. Use ruby or python for real work and do ...