On 10/26/2011 03:34 PM, Norm Matloff wrote: > > Here's what I'd like to do. I'm running code, in this case Python, in > xterm A (replace by your favorite terminal emulator), and want that code > to write to xterm B, just as if I had typed directly into xterm B. > > Say for example I want to run the ls command in xterm B, but do so via > some action in A. Say the latter is /dev/pts/8. I could run the Python > code > > import os > os.system('echo "ls"> /dev/pts/8') > > I have 2 questions: > > 1. How do I get the end-of-line character in there, so that the ls > command actually runs? I've tried "ls\n", "ls \r\n" and lots of > variants, e.g. > > echocmd = 'echo "ls'+chr(14)+chr(10)+'"> /dev/pts/13' > os.system(echocmd) > > But no matter what I try, it doesn't work. The "ls" does appear in > xterm B, and the newlines, but it's still expecting more input from me. > If I manually hit Enter in xterm B, then it works. > > I know this must be simple ridiculously simple, but I don't see it. > > Yes, I know I could use a pipe here, but I want to retain the ability to > manually type in xterm B, i.e. I want to be able to input there either > by physically typing there or by having the program in xterm B do it. > > Maybe I can launch xterm A via a pipe in the first place? I've tried > that a bit, but don't have enough experience with pipes to see how to > make that work either. > > One solution is to use "screen," which is what I'm doing currently, > but some people would like to use my program from Windows. > > 2. Which brings me to my next question: How can I do this in Windows? > (Not Cygwin.) > > Any ideas would be much appreciated. > > Norm
As for question 1, backticks are what you want: echo `ls` > /dev/pts/8 _______________________________________________ vox-tech mailing list vox-tech@lists.lugod.org http://lists.lugod.org/mailman/listinfo/vox-tech