How to capture the output of system("")?

ruby-talk
1

All,

When I can system("...") in ruby, I got either true or false returned,
but how do I capture the information that being printed out in console
when the cmd is being executed?

Thanks

···

--
Posted via http://www.ruby-forum.com/.

2

Yingqi Tang wrote:

When I can system("...") in ruby, I got either true or false returned,
but how do I capture the information that being printed out in console
when the cmd is being executed?

By using backticks or %x{} instead of system.

···

--
Ist so, weil ist so
Bleibt so, weil war so

3

use `` instead of system("")

···

On 6/4/07, Yingqi Tang <yingqitang@gmail.com> wrote:

All,

When I can system("...") in ruby, I got either true or false returned,
but how do I capture the information that being printed out in console
when the cmd is being executed?

Thanks

--
Posted via http://www.ruby-forum.com/\.

--
"Hey brother christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

4

for example `ls /etc`

···

On 6/4/07, Glen Holcomb <damnbigman@gmail.com> wrote:

use `` instead of system("")

On 6/4/07, Yingqi Tang <yingqitang@gmail.com> wrote:
>
> All,
>
> When I can system("...") in ruby, I got either true or false returned,
> but how do I capture the information that being printed out in console
> when the cmd is being executed?
>
> Thanks
>
> --
> Posted via http://www.ruby-forum.com/\.
>

--
"Hey brother christian with your high and mighty errand, Your actions
speak so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

--
"Hey brother christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

5

Another option besides backticks or %x{} is to use IO#popen. This is
useful if you want to read output in the same manner as you would with
a file.

···

On Jun 4, 10:47 am, Sebastian Hungerecker <sep...@googlemail.com> wrote:

Yingqi Tang wrote:
> When I can system("...") in ruby, I got either true or false returned,
> but how do I capture the information that being printed out in console
> when the cmd is being executed?

By using backticks or %x{} instead of system.

--
Ist so, weil ist so
Bleibt so, weil war so