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 ...

The obvious answer is to create an archive — a zip or tar file, maybe — and include a shell script that you have to tell the user to run after unpacking. That may be obvious, but it assumes a ...

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 ...