Download - Rich Simms

CIS 90 - Lesson 12
Shell (Environment) Variables
Some famous environment variables
Shell Variable
Description
HOME
Users home directory (starts here after
logging in and returns with a cd command
(with no arguments)
LOGNAME
User's username for logging in with.
PATH
List of directories, separated by :'s, for the
Shell to search for commands (which are
program files) .
PS1
The prompt string.
PWD
Current working directory
SHELL
Name of the Shell program being used.
TERM
Type of terminal device , e.g. dumb, vt100,
xterm, ansi, etc.
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