Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Is it possible to write to 2 files, eg. print LOGFILE,TEMP 'hello'?

by Anonymous Monk
on Aug 30, 2000 at 11:46 UTC ( #30264=categorized question: print w/replies, xml ) Need Help??
Contributed by Anonymous Monk on Aug 30, 2000 at 11:46 UTC
Q&A  > files


Answer: Is it possible to write to 2 files, eg. print LOGFILE,TEMP 'hello'?
contributed by nardo

multiprint("hello\n", LOGFILE, TEMP); sub multiprint { my $text = shift; for my $fh (@_) { print $fh $text; } }
Answer: Is it possible to write to 2 files, eg. print LOGFILE,TEMP 'hello'?
contributed by belg4mit

IO::Tee

Answer: Is it possible to write to 2 files, eg. print LOGFILE,TEMP 'hello'?
contributed by davido

From the Perl Cookbook.

"If you don't mind forking, open a filehandle that's a pipe to a tee program:"

And then an example adapted from the same section is:

my ($file1, $file2, $file3) = qw/this.out that.out other.out/; my $fh; open $fh, "| tee $file1 $file2 $file3 > /dev/null" or die $!; print $fh "data\n" or die $!; close $fh or die $!;

Of course this will only be of value to those whos operating systems support tee (Linux / Unix, for example). The reason for the redirection to /dev/null is because tee typically copies its output on STDOUT. If you don't want that extra copy you redirect it to /dev/null (the garbage can).

Please (register and) log in if you wish to add an answer



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    marioroy At a large firm, had to awaken a security guy a few times so that nobody would catch him sleeping.
    marioroy On a large dairy farm, almost went off the road with a 10 wheeler from exhaustion. On the farm, almost went off the silo with a big tractor. At the Fransiscan monastery, almost slipped off the dome while painting it.
    [marioroy]: In Saudi Arabia caught fire but didn't burn. I think angels exist.
    Lady_Aleena clean up after dinner finally.
    [Discipulus]: uch! so we are twice lucky to have MCE..;=)
    [marioroy]: Working a midnight graveyard shift, on the way home ran out of gas. just 2 minutes later somebody stops with a small tank of gas. It's wierd. There's always someone nearby for some reason.
    [Lady_Aleena]: I was the one who stop[ed in the middle of a cold night to pick up a small family walking to a gas station. I got a few gallons of free gas for the round trip, and the grandmother said she'd pray for me.

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (9)
    As of 2017-05-29 08:24 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?