Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!spool.mu.edu!news.cs.indiana.edu!nstn.ns.ca!aucs.acadiau.ca!880274d
From: 880274d@aucs.AcadiaU.ca (Ralph Doncaster)
Newsgroups: comp.unix.questions
Subject: Csh & foreach causing fork problems
Message-ID: <1991Mar24.201730.14808@aucs.AcadiaU.ca>
Date: 24 Mar 91 20:17:30 GMT
Reply-To: 880274d@aucs.acadiau.ca (Ralph Doncaster)
Organization: School of Computer Science, Acadia Univ., Nova Scotia
Lines: 26

I'm having problems with a script I made to mail all the students on our
system.   I often get a "fork: no more processes" error.
I assume this is because foreach starts a new process for each argument it is
given.
How can I solve this problem?
Here is the script:

#!/bin/csh
# bm (batch mailer) by Ralph Doncaster, Jan 25/91
# script to mail message to all accounts in /u/student
# usage: bm subject file
if ($#argv) then
	foreach i(`/bin/ls /u/student`)
		mail -s $1 $i < $2
		sleep 1
	end
	echo "Sending message file " $1 "to all accounts in /u/student."
else
	echo "Usage: bm subject file"
endif

-- 
+---------------------------------------------------------------------------+
|Ralph Doncaster        I don't have anything interesting to put in my .sig |
|880274d@AcadiaU.CA     330 CHI, Acadia U., Wolfville, NS B0P 1X0  542-3010 |
|UUCP: {uunet|watmath|utai}!cs.dal.ca!aucs!880274d  BITNET: 880274d@Acadia  |   +---------------------------------------------------------------------------+