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Re^4: Reading every file in a directory

by spookyjack123 (Initiate)
on Sep 29, 2012 at 03:12 UTC ( #996327=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Reading every file in a directory
in thread Reading every file in a directory

Oh 1 note I just discovered, I believe the sample here that you posted:

use strict; use warnings; my $directory = '.'; for my $YMLfile (<"$directory/*.yml">) { open my $fh, '<', $YMLfile or die $!; while (<$fh>) { # process the file's contents } close $fh; }

That code is good for opening the directory, I'm super grateful :) ! now reading and parsing the files is the next main issue for this script, the login line in the comment I last posted needs to be assigned to a value that can be read, then the login: followed by a space, need to be removed so it only shows the timestamp (the parsing part) then comparing will be super easy. Any ideas there ?


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Re^5: Reading every file in a directory
by Athanasius (Monsignor) on Sep 29, 2012 at 04:27 UTC

    Hello spookyjack123, and welcome to the Monastery!

    I think the following (untested) code will do what you want:

    #! perl use strict; use warnings; my $current_time = time; my $old_time = $current_time - (60 * 60 * 24 * 5); printf "Current time is %d, old time is %d\n", $current_time, $old_tim +e; my $directory = '/home/gac3/plugins/Essentials/userdata'; my @to_delete; for my $YMLfile (<"$directory/*.yml">) { open(my $fh, '<', $YMLfile) or die "Cannot open file '$YMLfile' fo +r reading: $!"; while (<$fh>) { if (/ ^ \s* login: \s+ ( \d+ ) $ /x) { push @to_delete, $YMLfile if int($1 / 1_000) < $old_time; last; } } close $fh or die "Cannot close file '$YMLfile': +$!"; } unlink @to_delete;

    Note that the timestamps in your sample data are 3 digits longer than the output of Perl’s time function. I have simply truncated the timestamp; you may need to adjust this part of the script.

    Hope that helps,

    Update: Fixed the call to unlink. Thanks to Kenosis for the heads-up!

    Athanasius <°(((><contra mundum

Re^5: Reading every file in a directory
by Kenosis (Priest) on Sep 29, 2012 at 04:44 UTC

    Try the following on a scratch directory that contains some scratch .yml files:

    use strict; use warnings; my $directory = './yml'; my $fiveDays = 5 * 86400; my $currentTime = time; my ( $fileLine, $timeStamp ); for my $YMLfile (<"$directory/*.yml">) { open my $fh, '<', $YMLfile or die $!; while ( $fileLine = <$fh> ) { last if ($timeStamp) = $fileLine =~ /login: (\d+)/; } close $fh; # Divide 13 digit TS by 1000 to convert to 10 digit TS if ( ( $currentTime - $timeStamp / 1000 ) > $fiveDays ) { print "Login TS in $YMLfile is greater than five days old.\n"; } }

    Verify that the files shown by the routine have a login timestamp (TS) greater than five days. If the script is working as needed/expected, try the following on your scratch dir and files (place it on the next line after the print statement, so files are conditionally unlinked):

    unlink $YMLfile or warn "Could not unlink $YMLfile: $!";

    Disclaimer: Be very careful with this file-deleting script, as you're assuming all responsibility for the use of it.

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