ruby how to pipe arguements to a bin

Question

I have a ruby bin I'd like to pass information to in this fashion:

some_text | ./bin/my_ruby_bin

where some_text will be accessible by ARGV

is this possible with ruby + shell or am I taking the wrong approach here?

The data will come to STDIN so you will want to read from that. — squiguy, Apr 07 '15 at 03:09
thanks for pointing me in right direction, this post looks promising http://stackoverflow.com/questions/273262/best-practices-with-stdin-in-ruby — random-forest-cat, Apr 07 '15 at 03:24

random-forest-cat · Accepted Answer · 2015-04-07T05:01:50.030

1

Here is simple solution that works for my cause, but it appears there are many ways to do this:

# ./bin/my_ruby_bin
#!/usr/bin/env ruby -n
puts "hello: #{$_}"

notice the -n flag

from command line:

echo 'world' | ./bin/my_ruby_bin
# => hello world

1 Answers1