Open Source Tech Trn: BASH! (Bourne Again SHell)

BASH and the Linux terminal are essential tools in Linux, and can also be be a very powerful programming language. As shown, it allows for a user to run through the operating system, create, edit, delete files and directories, and have full control over permissions.

In regards to scripting, probably the most powerful thing about using BASH is the ability to interact and leverage existing Linux commands to grab appropriate input and output. The timeconverter.sh script demonstrates this capability by calling the default 'date' command and using it to get a point of reference of where the user is (or rather where the system is set to), and then using that to help calculate other times around the globe.

What I like about this script - some self pride showing through, sorry - is it's very fast to run and execute. So if one needs to schedule a meeting for 4 pm their local time and wants to see what that time would be in other parts of the world you can run through a slew of possible times in no time at all!

A few corrections:
Please excuse some typos and little goofs in the video, like having the extra '/' at the end of #!/bin/bash, and finding the /usr/bin/ directory. Hopefully showing the fixes were equally helpful :). The script also doesn't necessarily need the .sh at the end. That is just a habit since many shell scripts have that, but one could simply name the file timeconverter or magictimes or whatever. I should add it is more common for users to add scripts to /usr/local/bin rather than /usr/bin, though as shown either works.

Tip: cat /etc/environment to see where the PATH links to. PATH in Unix/BSD/Linux defines where all the commands a user can use are located so that they can be run without having to know where each command file is located.

If anyone notices any bugs - the trickiest part is the daylight savings / standard time section - just please leave a comment and I can update.

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timeconverter: