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Unix --> Login files

Every time you log in, the Unix shell searches your home directory for certain files and executes the commands in them. This allows you to customize your Unix session. There are two initialization files that I will discuss here. The .cshrc (pronounced `dot-see-shirk') file and the .login (pronounced `dot-login') file. The .cshrc file is executed every time a new C shell is started. The .login is executed after the .cshrc file only when you initially log in. Generally, environment variables should be set in the .login file, and alias and set commands should be in the .cshrc file so that every new copy of the C shell will be able to use them.

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