CS155

CS155: Introduction to Unix

Spring 2018

Environment

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Environment variables

CS155 Environment

Introduction to Shells

Environment Variables

% date
Thu Jan 18 14:27:16 MST 2018

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 on $HOSTNAME'
I am $USER on $HOSTNAME
% echo "I am $USER on $HOSTNAME"
I am cs155 on parsons
% echo I am $USER on $HOSTNAME
I am cs155 on parsons
% echo $HOSTNAME
parsons
% echo $HOSTNAME | wc
      1       1       8

Setting environment variables

Modified: 2017-12-19T11:15

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