<oerjan> learn shebang_args_or_input is similar to print_args_or_input, but for other scripting languages like perl or python. E.g. if you have a python script that pipes stdin, replace the usual shebang line by #!/hackenv/bin/shebang_args_or_input python .

#!/bin/sh
id=$1
expr "$1" + 0 >/dev/null 2>&1 || exit 1
head -n $((id-1)) quotes >quotes.new
tail -n +$((id+1)) quotes >>quotes.new
diff quotes quotes.new >/dev/null && exit 1
printf "*poof*%s" "$(quote $id | cut -d')' -f2-)
mv quotes.new quotes