From: matz@... (Yukihiro Matsumoto)
Date: 2002-06-14T12:45:19+09:00
Subject: Re: UNIX pipes

HI,

In message "UNIX pipes"
    on 02/06/14, "David Douthitt" <DDouthitt@cuna.coop> writes:

|@snaptime = `/usr/contrib/bin/gunzip -lv #{file} | /usr/bin/sed 's/^[^ ]* [^ ]* \(... .. ..:..\).*/\1/'`.chomp
|p @snaptime
|
|...and it should (to me, anyway) return:
|
|"Jun 12 13:54"
|
|...instead of the odd result of:
|
|"\001"
|
|What gives? That's not a returned error code, is it?

`` eats your backslashes, so that it passes sed

  \( -> (
  \) -> )
  \1 -> \001

which are not what you want.  Try

 @snaptime = `/usr/contrib/bin/gunzip -lv #{file} | /usr/bin/sed 's/^[^ ]* [^ ]* \\(... .. ..:..\\).*/\\1/'`.chomp

							matz.