history Variable

The history variable enables you to set the number of commands that you saved in your history list. The history command is useful to view commands you have previously typed. You can also use the history file to repeat earlier commands. Type the following in your .cshrc or .tcshrc file:

set history=100

You can also affect the Bourne, Bourne Again, Korn, and Z shells in the same manner by typing the following line in your user profile file.

HISTORY=100