Question about backquotes and linux echo

ruby-talk
1

Hi all,

I can't figure out why the following works from the command line but not
from the backquotes:

echo -e "a\nb\naa" | grep a

This should produce:

a
aa

However, when I execute:

puts `echo -e "a\\nb\\naa" | grep a`

I get:

-e "a\nb\naa"

Of course, this is a trivial example, but it represents my real problem
well enough. Writing the text to a temp file and using 'cat' isn't an
option, unfortunately.

Thanks for any help,

Brian Hartin

···

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2

Nevermind...it was a Cygwin problem. Works fine on RedHat.

···

-----Original Message-----
From: Hartin, Brian
Sent: Wednesday, April 09, 2008 6:58 PM
To: 'ruby-talk@ruby-lang.org'
Cc: Hartin, Brian
Subject: Question about backquotes and linux echo

Hi all,

I can't figure out why the following works from the command line but not
from the backquotes:

echo -e "a\nb\naa" | grep a

This should produce:

a
aa

However, when I execute:

puts `echo -e "a\\nb\\naa" | grep a`

I get:

-e "a\nb\naa"

Of course, this is a trivial example, but it represents my real problem
well enough. Writing the text to a temp file and using 'cat' isn't an
option, unfortunately.

Thanks for any help,

Brian Hartin
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Pearson. If you were not an intended recipient,
please notify the sender and delete all copies.
We may monitor email to and from our network.
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