3. Environmental Variables

  • /usr/bin/env
  • /etc/environment
Tab. 3.1. Environmental Variables
Name Description
PWD Present Working Directory
UID User ID
HOME User Home Directory
PATH Executable Search Path
SHELL Current Shell
TERM Current Terminal (character mapping)
PS1 Prompt
LANG System Language
HOSTNAME Hostname
IFS Inter Field Separator
UMASK Permission mask for new files