Assigne command ouput to a variable

Ruby
1

Hello guys!

I am a newbie in ruby and i have a question. I run a system command and
i
want that the ouput of that command to be assigne to a variable,
something
like this:

var1 = system(“du -s /mnt/hdd/ | cut -f1”) puts var1 or

var1 = exec(“du -s /mnt/hdd/ | cut -f1”) puts var1

but system return 0 or 1 if command is failed or succesful, and exec
don’t
assigne the output to variable var1.

Can you help me? Thanks in advance.

2

Alle mercoledì 7 novembre 2007, Dragoescu Daniel ha scritto:

but system return 0 or 1 if command is failed or succesful, and exec don’t
assigne the output to variable var1.

Can you help me? Thanks in advance.

You can use backticks instead of system:

3

Hello!

It seems to work with:

var1 = du -s /mnt/hdd/ | cut -f1
puts var1

Thank you for the answare!

4

Alle mercoledì 7 novembre 2007, Stefano C. ha scritto:

but system return 0 or 1 if command is failed or succesful, and exec
don’t assigne the output to variable var1.

Can you help me? Thanks in advance.

You can use backticks instead of system:

Sorry, I hit the send button by mistake.

You can use backticks instead of system:

var1 = "du -s /mnt/hdd/ | cut -f1"
puts var1

I hope this helps

Stefano

5

Hi

You can get both the output from the command and its return value:

var1 = du -s /mnt/hdd/ | cut -f1
puts $?.exitstatus
puts var1

Kristian

On Wed, 7 Nov 2007 18:35:55 +0900, “Dragoescu Daniel”