man csh If the shell is a login shell, this is the sequence of invo-
cations: First, commands in /etc/.login are executed. Next,
commands from the .cshrc file your home directory are exe-
cuted. Then the shell executes commands from the .login file
in your home directory; the same permission checks as those
for .cshrc are applied to this file. Typically, the .login
file contains commands to specify the terminal type and
environment. (For an explanation of file interpreters, see
Command Execution and exec(2).)


As a login shell terminates, it performs commands from the
.logout file in your home directory; the same permission
checks as those for .cshrc are applied to this file.