# Terminal Quick Guide¶

Last Updated: November 18, 2014

To install and use Tethys Platform, you will need to be familiar with using the command line/terminal. This guide provides tips and explanations of the most common features of command line that you will need to know to work with Tethys. For a more exhaustive reference, please review this excellent tutorial: Learn the Bash Command Line.

## ~¶

The "~" is short hand for your Home directory. You will see this symbol most often in paths that extend from your Home directory. The shorthand is used because the path to the Home directory varies depending on your user name. For example, if your user name was "john", then the absolute path to your home directory would be something like /home/john.

## sudo¶

Some operations on the commandline require authorization by a superuser or administrator. The sudo command is used to grant permission. This is done by prepending any command with sudo. You will be prompted for your password before you can continue.

sudo apt-get moo


Note

When you type passwords into the command line, the characters are not printed to the screen for security reasons. This can be unsettling, but type with faith and press enter.

## cd¶

This command is used to change working directories on the command line. This is the equivalent of moving in and out of folders on a file browser.

## mkdir¶

This command is used to make new directories.

## chown¶

This command is used to change the owner of files or directories.

## Copy and Paste¶

The keyboard shortcuts CTRL-C and CTRL-V do not do preform copy and paste in the terminal. Instead, use the shortcuts CTRL-SHIFT-C and CTRL-SHIFT-V to copy and paste.