Ruby script to read output from alias

Question

Hello,

I have setup an alias in /etc/aliases so that each time an email comes in to a specific address, the text of the email is sent to a Ruby script. Like so:

example: "|/etc/smrsh/my_script.rb"

I need to know how to read the piped data in my Ruby script.. I have written a simple perl script that can read the data.. just can't figure out how to do it in Ruby.

Here is the relevant lines in the perl script:

my $fout = "/tmp/email.out";

open( EM, ">$fout" );

while( <> ) { chomp; print EM "$_\n"; }

Answer 1

You can use STDIN to read your pided data. The equivalent of your Perl code would be something like:

out = File.open("/tmp/email.out", "a+")
STDIN.each do |line|
  out.puts line
end