- Reading all the lines into an array is a big error. - It's a bit unintiuitive because you don't really know what strings to escape on the bash command line.

- Reading all the lines into an array is a big error. - It's a bit unintiuitive because you don't really know what strings to escape on the bash command line. In the example, some are escaped and others aren't. - In the end I think this could be achieved with a simple bash function: $ rb() { ruby -lane "print \$_.instance_eval(\"$@\")"; } $ echo hello | rb capitalize $ Hello