[SHELL PROMPT ]$ cd ~ # check for shell configuration files [SHELL PROMPT ]$ ls -al (for sh, bash, ksh, or zsh shells - example used: bash) [SHELL PROMPT ]$ pico ./.bashrc [PICO PROMPT ]$ export PERL5LIB=$HOME/path/to/my/site_perl (for csh or tcsh shells - example used tcsh) [SHELL PROMPT ]$ pico ./.cshrc [PICO PROMPT ]$ set PERL5LIB=/path/to/my/site_perl