Will a "system call" wait until the command finishes?

[sayoyo Sayoyo]

Hi,

I wish to know, if I use system() to execute a time consuming task, will
ruby wait until the task is finished or it will automatically interprete
the next line?

Thanks you very much

sayoyo

 

[Reacher]

Hi,

I wish to know, if I use system() to execute a time consuming task, will
ruby wait until the task is finished or it will automatically interprete
the next line?

Thanks you very much

sayoyo

it appears that Ruby will wait. try this
$ ruby -e 'system("sleep 5");p "hi"'