/bin/bash rkqc > /dev/null 2> /dev/null if [ "$?" == "0" ] then echo echo "It looks like \"rkqc\" is already in your \$PATH (possibly from a previous installation)." echo "Remove the old \"rkqc\" executable from your \$PATH, then source \"source_me\" one more time." echo echo else export RKQC_PATH=$(pwd)/rkqc export PATH=$PATH:$RKQC_PATH fi