From: Partha <tattvamasi@...>
Date: 2005-10-17T15:31:57+09:00
Subject: starting a process after the previous one is done

I am a RUBY NUBY.

Was trying to use ruby to automate a set of tasks.
In trying to do so I need  process2 to start only after process1 is
done.
I am using a code similar to below, but does not seem to work.

I want the process 1f_after to execute after the exec command is done.
So I would expect that the time stamp of "1f_after" is later than the
time stamp of "1f" but does not happen so.

How could I do this?
(process2 & process1 are not necessarily system commands I am trying to
executea part of a cad tool in process1 & 2)

Thankyou,
Partha



#!/usr/local/bin/ruby -W

print "Start\n"
exec("ls -lrt /home/xyz > 1f") if fork == nil
Process.wait
system("touch 1f_after")