2/19/2023 0 Comments Linux core shell user diagram![]() ![]() ![]() In many modern distros, this folder no longer is created by default, but you can create it. To make things more convenient, you can place scripts in a “bin” folder in your home directory: As such, read through scripts you download and be careful with data you have, just in case things go wrong. It’s also really important to use the right options, like –i for the rm command, so that your interaction is required. Also use common sense, like making sure you have backups of the files you’re about to run a script on. Scripting can easily make use of “administrator” or “superuser” privileges, so it’s best to test out scripts before you put them to work. In addition, so long as all of the commands that are referenced exist, scripts can work on multiple platforms with little to no tweaking required. Since it’s so universal, you should be able to script regardless of your platform. Bash is available for Mac OS users and Cygwin on Windows, too. We’ll be using the bash shell, which most Linux distributions use natively. Need to do something repetitive and tedious? Script it! Need a shortcut for a really convoluted command? Script it! Want to build a really easy to use command-line interface for something? Script it! Before You Beginīefore we begin our scripting series, let’s cover some basic information. You get to program with commands you already know, while learning staples of most major programming languages. That’s really the power of scripting, I think. And, you don’t have to learn another language because you’re using what you already know: the command-line. Scripting allows you to use programming functions - such as ‘for’ loops, if/then/else statements, and so forth - directly within your operating system’s interface. Scripts aren’t just invocations of commands, either. You can automate backups and each copied file can have the current date appended to the end of its name. You can invoke a command, like date, and use it’s output as part of a file-naming scheme. They also allow for far more useful functions, such as command substitution. Shell scripts allow us to program commands in chains and have the system execute them as a scripted event, just like batch files. ![]()
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