From: Brian Adkins <lojicdotcom@...>
Date: 2007-10-14T10:40:03+09:00
Subject: Re: backquotes question

On Oct 13, 8:28 pm, Zouplaz <u...@domain.invalid> wrote:
> Hello, I would like to know why
> cmd = "/bin/df -H /dev/#{partition}"
> used = `#{cmd}`
>
> works fine but this fails
> used = `"/bin/df -H /dev/#{partition}"`
>
> with an OS error.
>
> Thank you
>
> BTW, is there an aliase to the backquote ? I mean a kernel method doing
> the same - Just for the syntax, backquotes are not very sexy.

I think the syntax is great, but you can also use the following:

puts Kernel::`("ls")

Still uses a backquote, but it's more like a traditional method call.

Or as described on p. 351 of the pickaxe, you can alias the backquote:

alias :cmd :`
puts cmd "ls"

This worked for me when running a program, but not from irb.

But if you give it some time, I think you may like the simplicity of:

result = `ls`