perl -p -i -e 's/^.*CONFIG\["MKDIR_P"\].*$/ CONFIG["MKDIR_P"] = "mkdir -p"/' $RBCONFIG
perl -p -i -e 's/^.*CONFIG\["EGREP"\].*$/ CONFIG["EGREP"] = "grep -E"/' $RBCONFIG
perl -p -i -e 's/^.*CONFIG\["GREP"\].*$/ CONFIG["GREP"] = "grep"/' $RBCONFIG
perl -p -i -e 's/^.*CONFIG\["MKDIR_P"\].*$/ CONFIG["MKDIR_P"] = "mkdir -p"/' $RBCONFIG
perl -p -i -e 's/^.*CONFIG\["EGREP"\].*$/ CONFIG["EGREP"] = "grep -E"/' $RBCONFIG
perl -p -i -e 's/^.*CONFIG\["GREP"\].*$/ CONFIG["GREP"] = "grep"/' $RBCONFIG