Script Doctor While bash scripting is often maligned and not without reason, it is very flexible and powerful, as this example shows.

Step-by-step shell script execution Follow these steps to create and run a shell script of your own from your Ubuntu home directory: Create a directory to store your shell script Create a file in your ...

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t pres… ...

In the final script, of course, you won't echo the entered password, as that's not so good from a privacy and security perspective. To test for length, it's easy to use wc -c, but there's a special ...

Jack Wallen shows how you can create a Linux shell script that requires a password without having to save a password within the script.

Still, it was an interesting exercise as a shell-scripting problem, because it's surprisingly simply to adapt a set of conversion rules into a sequence of commands. I sidestepped one piece of it, ...