<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Hi, I've tried the changes, i.e. the "sleep" & removing the "done" but I get the same error message "syntax error: unexpected end of file" WHY !!!!! :-[ Second how could the script be modified, once it works, to be applied only to a group of users? thanks for all the help norbert <a class="moz-txt-link-abbreviated" href="mailto:sysadmin@handsworth.bham.sch.uk">sysadmin@handsworth.bham.sch.uk</a> wrote: <blockquote cite="mid200409220849.52896.sysadmin@handsworth.bham.sch.uk" type="cite"> <pre wrap="">On Tuesday 21 Sep 2004 4:33 pm, norbert wrote: </pre> <blockquote type="cite"> <pre wrap="">Hi Martin, Thanks I'm trying the script but I've run into two problems; 1) After changeing the paths for linux and adding a ";" and "done" please see code # This user is only allowed a single login instance tty=`/usr/bin/tty` # Get tty to test for multiple login if /bin/ps -u $LOGNAME | /bin/grep -v UID | /bin/grep -v "${tty##/dev/}" ; then /bin/cat <<-EOM >&2 You already have an active session on this system and you are allowed a single session. This session will now be closed. EOM wait exit fi done I saved the script and tried running it alone I get "line 16: syntax error: unexpected end of file" can the error be clarified and corrected please as it looks correct ...... </pre> </blockquote> <pre wrap=""> Looks to me it is the done causing your problems. Typical syntax is :- for f in `ls` ; do something done </pre> <blockquote type="cite"> <pre wrap="">Second where do I put this scrip in /etc/profile ? or as an independent executable ?? </pre> </blockquote> <pre wrap=""> Nup; just chuck the code on the end of /etc/profile. You should probably change the wait to a sleep 2 otherwise your message won't be visible. You should also possibly bypass this code for select users (root might be a good one) and be sure to stay logged in while you are fiddling with /etc/profile (ie test it using a different console). </pre> </blockquote> </body> </html>