Is possible to return after exec cmd?

[Petr Spisek]

Hi folks,
why doesn't work command 5.times{exec "pwd"} like this 5.times{puts
"Hello"} ?

ollin

 

[Sean O'Halpin]

Hi folks,
why doesn't work command 5.times{exec "pwd"} like this 5.times{puts
"Hello"} ?

ollin

exec() starts a new process in place of the current one, i.e. the ruby
interpreter. Use system() if you want to launch a child process and
return when it's finished.

Regards,
Sean

 

[Markus Prinz]

Hi folks,
why doesn't work command 5.times{exec "pwd"} like this 5.times{puts
"Hello"} ?

Because 'exec' overwrites the current Ruby process, so when 'pwd'
finishes there's nothing left to run. What you are looking for is
'system("pwd")' or "`pwd`".

Greets, Markus

 

[ollin oli]

Thanks to all,
example 5.times{ system "pwd" } works right.

... I'm beginer with ruby, command system is new sufficient way for me.

thnx

ollin