Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?

Re: filtering my own output

by RhetTbull (Curate)
on Sep 06, 2001 at 19:50 UTC ( #110602=note: print w/ replies, xml ) Need Help??

in reply to filtering my own output

I recommend Filter::Handle. I think it will do exactly what you want. I used it for the very same purpose -- to log the output a script without changing print statements, etc. Here's a sample script.

#!/usr/local/bin/perl use warnings; use strict; use Filter::Handle qw/subs/; #open the logfile open (LOGFILE,">>test.log") || die "open: $!"; #set up a sub to filter our output #print @_ to LOGFILE then also print it to STDERR Filter \*STDERR, sub { local $_ = "@_"; print LOGFILE scalar(localtime), ": $_"; $_ +}; #test it out by printing something to STDERR print STDERR "hello world\n"; #turn off filtering UnFilter \*STDERR; close LOGFILE || die "close: $!";
When run, this produces the following output:
/home/rhet/misc> ./ hello world /home/rhet/misc> cat test.log Thu Sep 6 11:46:24 2001: hello world /home/rhet/misc>

Comment on Re: filtering my own output
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://110602]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (4)
As of 2015-10-07 08:24 GMT
Find Nodes?
    Voting Booth?

    Does Humor Belong in Programming?

    Results (173 votes), past polls