One option is to rename the logfile temporarily. Have the script call it something like LogTemp$$ or something ($$ is the PID of the current job). Then it doesn't *exist* in it's previous name. Move it back to the original filename when you're done. There are problems with that, too, though, such as if someone re-creates the original name. What to do with the new one? I'd say rename, then write a standard "NOBODY HOME" version and set the permissions to 000 (you're using *NIX, aren't you?). When ready, delete the 000 version and move the original back. (Quoted below for those who want to read the backthread, but I added nothing below here.) --- Peter Cornelius <[EMAIL PROTECTED]> wrote: > I was a little confused because you are talking about users in your > original post. If you flock a file and a user can still view it, > probably edit it. If only your scripts are accessing the file then > you are pretty safe. At least that's my understanding. > > Peter C. > > > > i'm trying to lock a log file wheneber a new visitor enters the > page and > > also when we run scripts to traverse the log file looking for > specific info. > > > > On Mon, Jun 04, 2001 at 07:42:38AM -0700, Peter Cornelius wrote: > > > According to the docs flock is just an 'advisory' lock. So it > only works as > > > long as everyone checks the file with flock before working with > it, so it's > > > not very secure. The point of flock is to keep several programs > from > > > clobbering each others data so I don't think using it as a > security feature > > > will work well. What are you trying to do? > > > > > > Peter C. > > > > > > Nichole Bialczyk wrote: > > > > > > > i'm curious as to how secure flock is. if the file is locked > and another > > > > user tries to access it, does it wait or does it kick them off? > also, is > > > > it ever possible for it to get stuck? > > > > > > > > thanks, nichole > > > > ===== print "Just another Perl Hacker\n"; # edited for readability =o) ============================================================= Real friends are those whom, when you inconvenience them, are bothered less by it than you are. -- me. =o) ============================================================= "There are trivial truths and there are great Truths. The opposite of a trival truth is obviously false. The opposite of a great Truth is also true." -- Neils Bohr __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/
