### Open Source Your Knowledge, Become a Contributor

Technology knowledge has to be shared and made accessible for free. Join the movement.

## The PATH Environment Variable

# show path to file matching command ls
which ls
# display PATH variable (note the current directory is the third
# directory in the list below, denoted by the period notation)
echo $PATH # add the directory /home/joe/bin to PATH export PATH=$PATH:/home/joe/bin
echo \$PATH
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Open Source Your Knowledge: become a Contributor and help others learn.