bash

Scala shell script FAQ: How do I create a Unix/Linux shell script to run a small Scala script?

If you want to run a Scala script as a Unix or Linux shell script -- such as hello.sh -- write your script like this:

I was just working on my Linux Teleport command (Linux cd command with a history), and ran across the code below, which essentially shows how to use a form of "heredoc" syntax in a Bash shell script. This approach uses the Linux cat command, but functions just like the heredoc syntax in languages like Perl.

Here's the source code I just came across:

Linux shell script test syntax

All of the shell script tests that follow should be performed between the bracket characters [ and ], like this:

if [ true ]
then
  # do something here
fi

Very important: Make sure you leave spaces around the bracket characters.

I'll show more detailed tests as we go along.

Linux shell file-related tests

To perform tests on files use the following comparison operators:

Unix/Linux aliases FAQ: Can you share some example of the Linux alias command, as well as some alias command examples?

Using Linux aliases

Aliases in Unix and Linux operating systems are cool. They let you define your own commands, or command shortcuts, so you can customize the command line, and make it work the way you want it to work. In this tutorial I'll share several Linux aliases that I use on a daily basis.