Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!sun-barr!decwrl!henry.jpl.nasa.gov!elroy.jpl.nasa.gov!forsight!jato!jpl-devvax!lwall
From: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Newsgroups: comp.lang.perl
Subject: Re: Non buffered output
Message-ID: <6674@jpl-devvax.JPL.NASA.GOV>
Date: 27 Dec 89 21:17:16 GMT
References: <3146@taux01.UUCP>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 24

In article <3146@taux01.UUCP> crehta@taux01.nsc.com (Ran Ever-Hadani) writes:
: Is there a way to force the statement
: 
: print ".";
: 
: to put a dot on the screen immediatly after it is issued, rather
: than after the output buffer is full?

$ grep buffered /usr/man/catn/perl.n
                  select(STDERR); $| = 1;       # make unbuffered
                  select(STDOUT); $| = 1;       # make unbuffered
             line buffered if output is to the terminal and block
             buffered otherwise.  Setting this variable is useful
$ grep flush /usr/man/catn/perl.n
             ciative array before the dbmopen.  You can flush the
             efficient.  Note: exec (and system) do not flush
             unflushed buffers remain unflushed in both
             change the dbm file.  (It does, however, flush any
     $|      If set to nonzero, forces a flush after every write
$ 

There are faster ways of finding out these things than asking the net.

Larry