From: Joel VanderWerf <vjoel@...>
Date: 2006-10-25T03:35:56+09:00
Subject: Re: backquote and variables

Joel VanderWerf wrote:
> robertlaferla@comcast.net wrote:
>> I am trying to construct a command line to be executed using backquote 
>> `` notation.  i.e.  capturing the output to a string
>>
>> e.g.
>>
>> #!/usr/bin/ruby -w
>> file = "/etc/motd"
>> string = `"cat " + file`
> 
> 
> string = `#{"cat "} + file`

Oops, I didn't really read your example. I assumed you were trying to 
get the command name interpolated in the string. Wilson answered your 
question.

If you wanted to interpolate both, you could do this:

cmd="cat"
file="/etc/motd"
motd = `#{cmd} #{file}`

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407