crontab is obviously very useful, with two reservations.
Obviously, if the one of the machines is down, cron will not run. You could set up some mechanism to compensate for that (write a timestamp file, and check the file was created), but it would be a bother.
You could make the two machines run a job at the same time, but you would have to make sure the clocks are exactly the same. It's probably better to let one of them do it's think first, and then an hour or whatever later, let the other one. Or might be some way to do everything on one machine, and it runs a remote process on the other.
I want to take daily backup(11pm) of /var/www to /mnt/bak excluding /var/www/videos and /var/www/old. HOW to implement a rotating snapshot method, so that i can have multiple(say 4) automatically rotating backups. (0 Replies)
hello,
i need to modified my synch/back scripts....
i want that this script only syncro folders in destinationfolder.
f.e. when in destination are two folders
1) admin
2) users
but in SOURCE are three:
1) admin
2) users
3) antivirus
the script should only increnmential sync the... (0 Replies)
I've got a new MythTV box at home and figured it would be a great opportunity to use it to do daily mirrors of my mysqlbackup directory (let's say /mysqlbackup/backups) and my website at /usr/local/apache/htdocs and below.
I figured it would be a best practice NOT to use a root login but to... (0 Replies)
How do i use Rsync yo pickup only new or modified files from source?
I am using rsync -ravzpotu --delete-excluded but sometimes it goes thru all files again (5 Replies)
I'm using this script to backup an external hdd to another external hdd -
rsync -aE --delete --exclude Volumes/Disk\ A/.Trashes "/Volumes/Disk A" "/Volumes/Disk A Backup"The source drive being "Disk A", and the drive I wish to backup to being "Disk A Backup".
I'm constantly getting this error,... (4 Replies)
Hi Everyone,
we are running rsync with --backup mode, Are there any rsync options to remove backup folders on successful deployment?
Thanks in adv. (0 Replies)
Hello everybody
I'm triing since few days to do this. So sorry if my question looks stupide, but i've tried.
I have to get picture from a folder (who is updated automaticly and with subfolder) with theirs extensions (i'm ok on that) and this files have to me copied in a folder where a website... (7 Replies)
Hi,
I am trying to use rsync utility through ssh to synchronize some root files of 2 servers.
I have a rsyncusr user in each server. I configured ssh with no password. I set NOPASSWD in the /etc/sudoers file:
rsyncusr ALL= NOPASSWD:/usr/bin/rsync
In order to make rsync able to sudo and be... (2 Replies)
Hello All,
I am looking at a fast way to script some backups. I am looking at using rsync to do the leg work. I am having a hard time conceiving a script though.
I have a tree with subfolders within subfolders. I was looking at the /xd option to parse the tree.
Directory of k:\
... (4 Replies)
Discussion started by: jvamos
4 Replies
LEARN ABOUT SUSE
set::crontab
Crontab(3) User Contributed Perl Documentation Crontab(3)NAME
Set::Crontab - Expand crontab(5)-style integer lists
SYNOPSIS
$s = Set::Crontab->new("1-9/3,>15,>30,!23", [0..30]);
if ($s->contains(3)) { ... }
DESCRIPTION
Set::Crontab parses crontab-style lists of integers and defines some utility functions to make it easier to deal with them.
Syntax
Numbers, ranges, *, and step values all work exactly as described in crontab(5). A few extensions to the standard syntax are described
below.
< and >
<N selects the elements smaller than N from the entire range, and adds them to the set. >N does likewise for elements larger than N.
! !N excludes N from the set. It applies to the other specified range; otherwise it applies to the specified ranges (i.e. "!3" with a
range of "1-10" corresponds to "1-2,4-10", but ">3,!7" in the same range means "4-6,8-10").
Functions
new($spec, [@range])
Creates a new Set::Crontab object and returns a reference to it.
contains($num)
Returns true if $num exists in the set.
list()
Returns the expanded list corresponding to the set.
The functions described above croak if they are called with incorrect arguments.
SEE ALSO crontab(5)AUTHOR
Abhijit Menon-Sen <ams@toroid.org>
Copyright 2001 Abhijit Menon-Sen <ams@toroid.org>
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2008-07-30 Crontab(3)