GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
case $step in true) echo -n $cmd $cmdsource $cmddest" ?" read ans case $ans in n*) exit 0;; q*) exit 1;; esac;; *) case $verbose in true) echo RUNNING: $cmd $cmdsource $cmddest esac;; esac eval $cmd $cmdsource $cmddest || exit 1 exit 0