Mongrel crashes while running 'exec' through ruby

Server Mongrel
1

Hi All,

I have a ruby on rails application and in the controller, I try to run a
shell script using exec command

like this

variable = ‘sh /home/abc.sh’
exec variable

But when the control comes at this line, the mongrel server immediately
crashes, and when I check its status its says “missing pid file”.

The shell script contains nothing wrong, it works fine on the linux
console, I have also commented everything in that shell script and put
just a single variable declaration, but even then the serer crashes…

Any Ideas, or is there any other way to run a shell script using ruby on
rails ??

Thanks in advance…

Tahir R.

2

On Thu, Jun 11, 2009 at 08:56, Tahir R. [email protected] wrote:

Any Ideas, or is there any other way to run a shell script using ruby on
rails ??

First of all, this is not a mongrel question at all, but a Ruby
question, so
please don’t follow up here. But anyway:

#exec replaces the current process and never returns and is probably not
what you want to do in a controller. Have a look at

http://apidock.com/ruby/Kernel/system

and

http://apidock.com/ruby/Kernel/`

and

http://apidock.com/ruby/IO/popen/class

HTH,

/David

3

Got the solution, exec starts a new process so don’t use it…

just use the shell command in ruby like this

sh /home/abc.sh

in the controller…

It runs fine