08-20-2014
Why not use stat (or equivalent, if available)?
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
We have a third party tool in UNIX to kick off a 'file copy' job based on a file existance. If a specific file exists in an UNIX directory, another process should start copy the file into another system for further processing. The issue is, the copy job is starting as soon as the file exists in... (6 Replies)
Discussion started by: kslakshm
6 Replies
2. UNIX for Dummies Questions & Answers
my /etc/.osm file is growing rapidly and logging large amounts of activity. Can anyone tell me what this file is for and what types of information is logged in this file.
Thanks in advance for your help!! (1 Reply)
Discussion started by: golfs4us
1 Replies
3. UNIX for Dummies Questions & Answers
I need to find the file that is growing in the mount. Say yesterday the utilised space was 95% but today that is 96%. How do i find the file that is growing in size. Have checked the same with du/df options but was not able to find much.
Please suggest the best possible option. (3 Replies)
Discussion started by: raman1605
3 Replies
4. HP-UX
how to redirect the growing contents of log file to another file in unix (2 Replies)
Discussion started by: megh
2 Replies
5. Shell Programming and Scripting
Hi,
I need to create a script that checks if a file exists on an offsite server
which only has ftp enabled. I was originally going to use perls Net::FTP
class but the client does not have perl installed nor wants it.
So, I have to use a shell script which logs into the server, then ... (1 Reply)
Discussion started by: gseyforth
1 Replies
6. Solaris
Hi gurus
Im a newbie in solaris..I need to extend file system space in solaris 10 which is using SVM..I have a file system /pin02 which is 93% full n needs to be extended..only 3.6 gb avail space left..the file system is not mirrored...normal ufs file system only..can u please tel me t... (6 Replies)
Discussion started by: madanmeer
6 Replies
7. UNIX for Dummies Questions & Answers
Hi,
A log file which is growing at high speed, don't know the name of it. How to find the respective file?
Many thanks. (2 Replies)
Discussion started by: venkatesht
2 Replies
8. Shell Programming and Scripting
How to check log size every 10min. by script (can use crontab)
if log size not change with alert "Log not update"
Base run on SunOS 5.8 Generic_Virtual sun4u sparc SUNW,SPARC-Enterprise
logFiles="log1.log log2.log"
logLocation="/usr/home/test/log/"
Out put.
Tue Jan 31... (3 Replies)
Discussion started by: ooilinlove
3 Replies
9. Shell Programming and Scripting
I have a simple script which copies directory from one place to another and deleting the source .
I am facing a situation when new files gets added when the script has started running. Its resulting in data loss
Please suggest a way to avoid data loss. I googled a lot but most are perl... (11 Replies)
Discussion started by: ningy
11 Replies
10. UNIX for Advanced & Expert Users
We have a log file which has 16 million row. We want to read all the lines appended from the last time we read using sed command
sed -n '<START_LINE>,<LAST_LINE>p' abc.csv
I can store this last line line so I can give replace that with START_LINE in my next read. The problem is wc -l which... (2 Replies)
Discussion started by: one2connect
2 Replies
LEARN ABOUT DEBIAN
path::class::file::stat
Path::Class::File::Stat(3pm) User Contributed Perl Documentation Path::Class::File::Stat(3pm)
NAME
Path::Class::File::Stat - cache and compare stat() calls on a Path::Class::File object
SYNOPSIS
use Path::Class::File::Stat;
my $file = Path::Class::File::Stat->new('path','to','file');
# $file has all the magic of Path::Class::File
# sometime later
if ($file->changed)
{
# do something provocative
}
DESCRIPTION
Path::Class::File::Stat is a simple extension of Path::Class::File. Path::Class::File::Stat is useful in long-running programs (as under
mod_perl) where you might have a file handle opened and want to check if the underlying file has changed.
METHODS
Path::Class::File::Stat extends Path::Class::File objects in the following ways.
use_md5
Calling this method will attempt to load Digest::MD5 and use that instead of stat() for creating file signatures. This is similar to how
File::Modified works.
changed
Returns the previously cached File::stat object if the file's device number and inode number have changed, or if the modification time or
size has changed.
Returns 0 (false) otherwise.
While File::Modified uses a MD5 signature of the stat() of a file to determine if the file has changed, changed() uses a simpler (and
probably more naive) algorithm. If you need a more sophisticated way of determining if a file has changed, use the restat() method and
compare the cached File::stat object it returns with the current File::stat object.
Example of your own changed() logic:
my $oldstat = $file->restat;
my $newstat = $file->stat;
# compare $oldstat and $newstat any way you like
Or just use File::Modified instead.
restat
Re-cache the File::stat object in the Path::Class::File::Stat object. Returns the previously cached File::stat object.
The changed() method calls this method internally if changed() is going to return true.
SEE ALSO
Path::Class, Path::Class::File, File::Signature, File::Modified
AUTHOR
Peter Karman, <karman@cpan.org>
COPYRIGHT AND LICENSE
Copyright (C) 2006 by Peter Karman
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-01-28 Path::Class::File::Stat(3pm)