Customizing Your Shell

People don't have the same preferences, and Linux's shells were designed with this fact in mind—they support customizations through a variety of configuration options. You can modify system defaults to suit your needs as a site and modify user-specific options to change the behavior in your account alone. Two common types of customization are using aliases, which enable you to create shortcuts or effectively change the defaults of a command, and setting environment variables, which provide information to shells and to other programs you run from shells.

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