If you see a "command not found" error when using the module command on a CLSE Linux workstation, it may be due to a setting within the Terminal application:

Click Terminal >> Preferences to review the app settings:

Navigate to Profiles, and review the Command section. Click the box labeled Run command as a login shell:

Then close and re-open the Terminal.
Alternatively, you can try adding the following to your .bashrc file
if [ -z "$LMOD_CMD" ]
then . /etc/profile
fi
One way of doing it for example would be to paste this in your shell:
cat - .bashrc > .bashrc <<EOF
if [ -z $LMOD_CMD ]
then . /etc/profile
fi
EOF