From: Dossy <dossy@...>
Date: 2002-07-23T02:56:36+09:00
Subject: Re: piping into ruby at command line

On 2002.07.23, Shashank Date <ADATE@kc.rr.com> wrote:
> How do I make something like this work ?
> 
> % cat junk.txt | ruby -e "puts $_"
> 
> I cannot seem to make ruby accept std input when it is in a "pipe"  mode at
> command line.
> 
> I am using cygwin Ruby 1.6.7

$ cat >junk.txt <<EOT
asdf
1234
EOT

$ cat junk.txt | ruby -ne "print $_"

Strangely, this didn't do what I expected:

$ cat junk.txt | ruby -ne "puts $_"

Using #puts, I got two blank lines.  This happens in both 1.6.7 and
1.7.2:

ruby 1.6.7 (2002-03-19) [i386-linux]
ruby 1.7.2 (2002-05-30) [i686-linux]

-- Dossy

-- 
Dossy Shiobara                       mail: dossy@panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)