CS155

CS155: Introduction to Unix

Fall 2017

Environment

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Environment variables

CS155 Environment

Introduction to Shells

Environment Variables

% date
Mon Nov 20 15:54:07 MST 2017

Environment Variables

% printenv
USER=applin
PATH=/bin:/usr/bin:/usr/bin/X11:.
HOME=/s/parsons/d/fac/applin
PWD=/s/parsons/d/fac/applin/tmp
GROUP=fac
HOST=blackthorn
LANG=en_US.UTF-8
HOSTNAME=blackthorn
PAGER=less
TZ=America/Denver

Environment Variables

% echo 'I am $USER and my group is $GROUP'
I am $USER and my group is $GROUP
% echo "I am $USER and my group is $GROUP"
I am applin and my group is fac
% echo I am $USER and my group is $GROUP
I am applin and my group is fac
% echo $HOSTNAME
blackthorn
% echo $HOSTNAME | wc
      1       1      11

Setting environment variables

Modified: 2012-04-21T15:21

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