stat is your friend
From the Perldocs..
Returns a 13-element list giving the status info for a file, either th
+e file opened via FILEHANDLE, or named by EXPR. If EXPR is omitted, i
+t stats $_. Returns a null list if the stat fails. Typically used as
+follows:
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
$atime,$mtime,$ctime,$blksize,$blocks)
= stat($filename);
Not all fields are supported on all filesystem types. Here are the mea
+ning of the fields:
0 dev device number of filesystem
1 ino inode number
2 mode file mode (type and permissions)
3 nlink number of (hard) links to the file
4 uid numeric user ID of file's owner
5 gid numeric group ID of file's owner
6 rdev the device identifier (special files only)
7 size total size of file, in bytes
8 atime last access time in seconds since the epoch
9 mtime last modify time in seconds since the epoch
10 ctime inode change time (NOT creation time!) in seconds since t
+he epoch
11 blksize preferred block size for file system I/O
12 blocks actual number of blocks allocated
Here is a quick and dirty hack of how to do it without using dir..
#! /usr/bin/perl
use strict;
use warnings;
use File::stat;
my $dir = $ARGV[0] || "./";
my ($time1, $time2, $returnname);
opendir (DIR, $dir) or die "Cannot open $dir: $!\n";
while( my $file = readdir( DIR ) ) {
next if $file =~ /^\./;
my $sb = stat($file);
$time2 = $sb->mtime;
if ($time2 > $time1) {
$time1 = $time2;
$returnname = $file;
}
#printf "File is %s, size is %s, mtime %s\n", $file, $sb->size, $sb
+->mtime;
}
print "Newest file is $returnname\n";
Note the mtime is returned as an epoc time so if you want yesterdays file all you have to do is subtract 86400 seconds... type stuff...
-----
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