On Thu, 5 Nov 1998, dustin sallings wrote:
> On Thu, 5 Nov 1998, Paul B Dokas wrote:
> // BTW, I've other wise solved this problem in my program by rewriting
> // it. Expect a psh type program (see the thread of about 2 weeks ago)
> // soon!
> 
> 	Wouldn't it make more sense to just use psh?  :)

Darn!  And I've just about finished it too....  So where do I find psh?
I've done a basic search and haven't found it.

I guess that this whole thing has boiled down to an programming exercise.
What I've built is a program to perform complex foreach-like loops for
security-checking purposes.  Something like this (in csh syntax):

  foreach i (`cat machines`)
    rsh $i 'find /dev -type -print' | fgrep -v MAKEDEV
  end

  foreach i (`cat moremachines`)
    rsh $i 'cat ~root/.rhosts'
  end

but all in parallel, keeping N rshs running simultaneously.


The only thing that I added is probably best summed up by looking at
a sample config file:

  %sunservers = {server1, server2};
  %sunclients = {sun1, sun2, sun3, sun4, sun5, sun6};
  %suns = (%sunservers + %sunclients);

  %sunservers:  /usr/local/sbin/servercheck

  %sunclients:  /usr/bin/perl
  #
  # insert perl script here to check clients
  #

  %suns: find /dev -type f -print


Yes, I added a full YACC frontend that lets you define sets of things,
do set operations on them.  You can even execute a command and use
it's results to define a set...

<sigh>

Oh well, in hind sight I've reinvented the wheel twice by 1) duplicating
the functionality of psh and 2) by creating a C program to handle sets
where a relatively simple perl script would suffice.


Anyone want a copy?  It's mostly done. :-)

Paul
--
Paul Dokas                                            dokas@cs.umn.edu
======================================================================
Don Juan Matus:  "an enigma wrapped in mystery wrapped in a tortilla."