Crontab: What's in yours?

maniaq · 10 months

well, without going into specific details...

wake me up in the mornings
check the temperature and turn my heater on/off (there's also a summer script, which depends on a "season" file, also updated by crontab)
change the desktop wallpaper every hour
clean up security cam files
turn lights on at sunset
turn lights off if they're still on and it's late (this actually works well as a reminder to go to bed sometimes!)
update/optimise MythTV

there's also a superuser crontab for general housekeeping stuff...

(EDIT: most of this was inspired by the guy that was inspired by Jarvis from Iron Man - complete with RFID tags that do other shit, too - I haven't given my system a proper name, yet)

iamjack · 10 months

* * * * * canto-fetch

noir_lord · 10 months

0 0 * * * /home/pinky/brain/take_over_world.py

[deleted] · 10 months

0 0 * * * ~/bin/checkrate.sh;

Pulls the latest variable mortgate rate from my lender's website and checks if it has changed since the last check. If it has, it emails me the new rate.

strider1551 · 10 months

I'm not sitting at my desktop at the moment, but should be something like:

MAILTO=""
55 02 * * * eix-sync && emerge -uDNf world

It's a Gentoo system, and the above command gets the latest portage tree and downloads the source for any updates. Wake up in the morning, take a quick overview of what the updates are, and let it work while I shower.

[deleted] · 10 months

script that repost imgurs on reddit

AlucardZero · 10 months

# m h  dom mon dow   command
@reboot screen -U -a -d -m irssi

auxiliary-character · 10 months

# I don't have any plans tonight, are you doing anything?

Heh.

strolls · 10 months

Email me an HTML list of all new shows available on the BBC's iPlayer service (excluding categories children's, politics, news, sport, variety shows, Pre-School and Talent Shows) and download anything I've flagged as interesting. Send me another showing films, just in case I missed them in the last 4 days.

# Refresh get_iplayer cache at 45 minutes past every hour
45 * * * *  /usr/local/bin/get_iplayer --type radio --refresh >> /dev/null 2>&1 && /usr/local/bin/get_iplayer --refresh >> /dev/null 2>&1
# Email daily summary of new shows at 8am daily
0 8 * * *   /usr/local/bin/get_iplayer -z "Daily Summary" --email stroller  > /dev/null 
# Email summary of new films at 8am every 4 days
0 8 */4 * * /usr/local/bin/get_iplayer --category films --email stroller  > /dev/null 
# Run PVR download at 2am nightly
0 2 * * *   /usr/local/bin/get_iplayer --pvr --before 24 && echo "Finish time: " ; date

davidfg4 · 10 months

I have three lines of rsync backup stuff, and wallpaperChanger.sh which changes my wallpaper to a day or night wallpaper, depending on whether or not it is actually day or night.

neoice · 10 months

the only thing custom I have is:

*/6 *   *   *   *       root    /usr/local/sbin/expire

I have a script that automatically takes and uploads screenshots. I have this set up to expire them every 30mins.

TheManFromInternet · 10 months

I have a series of these:

0 0 * * * updatedb -o /var/lib/mlocate/{something_interesting}.db -U /{something_interesting}/ # JOB_ID_X

These feed a search engine I wrote using CGI because nothing else I have used is faster at finding the stuff I may be looking for over my network file-system. When it runs it uses all four of my cores as it is a pipeline.

eternauta3k · 10 months

Used to have a script to download the latest APOD and set it as wallpaper. Now I just set it to run on login.

zencyl · 10 months

nothing, but i think that is lack of experience and subject to change as i learn more about what i can do with linux.

terremoto · 10 months

Desktop (Debian): 0 2 * * * rsync -av --progress --delete-after /home/jameseric/ /mnt/safe/sinister/linux/home/jameseric/ 0 2 * * * rsync -av --progress --delete-after /mnt/windows/ /mnt/safe/sinister/windows/

Laptop (Cygwin / Windows with a cron application I wrote):

0 0 * * * C:\Cygwin\bin\find.exe 'C:\Users\User\My Downloads' -maxdepth 1 -! -iname desktop.ini -mtime +7 -print -exec rm -rf "{}" ; >> "C:\Users\User\My Downloads\Deleted.txt"

# Clean out the system logs
0 1 %30 * * wevtutil.exe el | sed "s/^\(.*\)/wevtutil.exe cl \"\1\"/" | bash -s

# CCleanr
0 4 * * * "C:\Program Files\CCleaner\CCleaner.exe" /AUTO

# Backup Documents folder hourly on weekends
0 3-1 * * 0,6 C:\Users\User\Configuration\Scripts\Backup.bat 95

# Hourly backups in the early morning and evening
0 6-8,18-1 * * 1-5 C:\Users\User\Configuration\Scripts\Backup.bat 95

# Nightly User directory backup
0 2 * * * C:\Users\User\Configuration\Scripts\Backup.bat

adrianmonk · 10 months

Thanks for reminding me. I have this:

0 3 * * * /root/bin/run-rdiff-backup.sh

And that reminded me to check on how it's doing. Turns out I've had the external hard drive (target of the backups) turned off since (checks logs...) May 27th. Just turned it back on. Running this now:

echo /root/bin/run-rdiff-backup.sh | sudo batch

keeperofdakeys · 10 months

*/15  * * * * root  /usr/userbin/battery_warn.sh

Every 15 minutes check the battery, flash a libnotify message at critical urgency (means it won't disappear) if it is under a certain percentage. At the moment it is 50%, but I'm still playing around with it. I've also got a script in cron.daily that runs updatedb.

[deleted] · 10 months

flexget runs every 15 minutes to grab the latest TV shows. i had an rsync running backups every night with my old setup, but since i migrated to a new NAS i haven't set that up yet.

sequentious · 10 months

My user's crontab.

$ crontab -l
# Hardlink maildir at 0400
# My maildir is fetched from google. Due to the peculiar nature of gmail, a single message can be in multiple folders. Therefore, I run freedup to hardlink identical messages together, saving about 500MB.
0 4 * * * timelimit -t240 -T30 freedup -l0 ~/.maildir-chrisirwin/

# Run goobook to fetch contacts
# Google's contact list syncs with my palm and android device, and I use the web interface occasionally, goobook does two-way sync of contacts to google in a mutt accessible interface.
0 4 * * * /usr/local/bin/goobook reload

# Auto-update git-home-repos
# Custom script I wrote to keep my own dotfiles in git repos.
# This checks in and pushes, though it does not auto-merge (yet?)
00 * * * * /usr/bin/home-repos-update >/dev/null 2>&1

# Custom script I've written to tell me if I've scheduled anything today.
# Send out daily agenda on every day but monday
00 04 * * 2-7 /home/chris/.local/bin/mail-gcal-agenda today
# Send out weekly agenda on monday
00 04 * * 1 /home/chris/.local/bin/mail-gcal-agenda week

# Run offlineimap every 5 minutes with a timeout of 4 minutes,
#  and kill after 4:30.
# Don't run between 0400-0500 since we're running hardlink maintenance at that time
# This gives me my gmail in an offline accessible format that I can share between mail clients if I decide to try another (though thunderbird can't use maildir). In practice, I only use mutt currently.
# Script also calls mairix to index mail, some scripts to flush flags from mairix folders back to the original messages, and perform some searches (all unread mail, etc).
*/5 0-3,5-23 * * * timelimit -t240 -T30 /usr/bin/update-maildirs -u Noninteractive.Quiet > /dev/null

# Run podget at midnight & 0600
# Fetches attachments (torrents, mp3, whatever) from RSS feeds.
0 00,06 * * * podget -s > /dev/null 2>&1

The only thing of note in my system crontab is a backup script I wrote to wrap rdiff-backup (for /, /home) and rsync (for bulk storage filesystems).

graycode · 10 months

*/5 * * * * ~/bin/traffic_alert.sh

Scrapes the latest travel times from state dept. of transportation's website for the route I take home from work, runs some analysis on the recent data, and sends me an email right before it thinks the traffic is about to get totally fucked up, so I know when to leave. :)

Also accumulates the data into a big .csv file which I can generate graphs from, in order to improve its analysis.

kukulkan · 10 months

If you have never heard of it, I highly recommend checking out cronic. It's a simple cron wrapper that gives you the best of both worlds. It parses for error output, if there is none it does nothing, if errors occur it will email you. It's a great solution to dev nulling everything.

ummmmm · 10 months

5 0 * * * /root/dbbackup.sh

I have my website database backed up every night and scp it to another server where Dropbox is installed.

jangovich · 10 months

59 23 * * * /root/bckp.sh

only appeared there a few days ago though... finally (:

azashoriu · 10 months

*/1 * * * * /home/aza/bin/afraid_up
*/5 * * * * /usr/bin/php /srv/http/cacti/poller.php > /dev/null 2>&1
*/15 * * * * /usr/bin/getmail -rgetmailrc-all
22 00 * * 0 /bin/rm /var/local/dumps/*
02 00 * * * /home/aza/bin/gitstats/gitstats /srv/http/git/projects.git/ /srv/http/gitstat/projects/
15 00 * * * /bin/tar cvjf /mnt/data/backups/git/repos/projects.git_`date "+%d%m%Y"`.tar.bz2 /srv/http/git/projects.git/
10 00 * * * /usr/bin/find /mnt/data/backups/git/repos/ -iname 'projects*.tar.bz2' -mtime +7 -exec rm -v {} \;
30 00 * * * /home/aza/bin/ssync
02 00 * * * /bin/sh /srv/http/stats/updatestat.sh > /dev/null
02 00 * * * /usr/local/sbin/squid-graph --no-console-log --cumulative --output-dir=/srv/http/squid-graph < /var/log/squid/access.log

rschlaikjer · 10 months

0 * * * * /usr/local/bin/lifereabackup

Since I store the cache for my RSS reader in a ramdisk to prevent my HDD from being hammered (liferea copes terribly with a large number of feeds), I need a script to copy the contents of the ramdisk to disk every now and again.

0 0 1 * * /bin/bash -c 'echo "It has been a month since the last backup." | mailx -s "Time for a backup" ross'

Remind me with an email to connect up my backup drive and sync everything.

MarcusHauss · 10 months

@hourly sh /Users/marcushauss/Documents/Cronjobs/Minecraft_cron_job.command >/dev/null 2>&1 @hourly sh /Users/marcushauss/Documents/Cronjobs/Notational_data_dropbox_backup.command >/dev/null 2>&1

Background: MC has a bottleneck with IO, so i moved the savegames, make a ramdisk, load the files there and make a symbolic from the minecraft folder to the ramdisk, so i keep an hourly rsync to another folder, everytime it runs it alers me via growl.

The second one is the same as the first one only that i backups to dropbox instead of my own hdd.

I already have my own shell apps for making, mounting and restoring from backup plus demounting, deleting and backuping a ramdisk, i just need to interconnect them and also backup to dropbox.

mathboy0 · 10 months

Lots of stuff automatically installed by Ubuntu, plus: - my daily backup script, which exports my package selections and some other stuff into a file in Dropbox for easy recovery. - daily apt update and upgrade, because for whatever reason the options in the system give you no option to have it automatically install all upgrades.

nandhp · 10 months

57 2,5,8,11,14,17,20,23 * * * sh -c 'blah/blah/blah/fetch-jwz-org.sh > /dev/null 2>&1'

If you're unaware, Jamie Zawinski has a puzzle on his home page. It changes regularly, so this saves a copy. I found the secret, but I won't give you a hint either (perhaps I should consider stopping this use of his bandwidth).

57 19 * * * sh -c 'blah/blah/blah/update-rfcs.sh > /dev/null'

I plan for Internet outages. My laptop has dumps of Wikipedia (which I view with wikipediaDumpReader; 6G), OpenStreetMap (preformatted for use with Navit; 3.1G), and all the IETF RFCs (just in case; a measly 350M). This script uses rsync to update the RFCs.

57 0,3,6,9,12,15,18,21 * * * sh -c 'blah/blah/blah/encfs-mail-backup.sh > /dev/null'

I also use mbsync to back up my Gmail account. I encrypt the backup using encfs.

AaronOpfer · 10 months

0 */8  *   *   *             /usr/sbin/cron-apt
0 */8  *   *   *             /etc/update_squid_adblock.sh
0  0   *   *   6             /etc/backup_to_nas.sh
0  0   *   *   *             rm -rf /home/dump/* && echo 'This directory is emptied daily at midnight' > /home/dump/WARNING.txt
55 7   *   *   1,2,3,4,5     /usr/local/bin/screen-on
25 16  *   *   *             /usr/local/bin/screen-off
*/1  *   *   *   *             /usr/local/sbin/verify_stream_svcs.sh

Cron-APT automatically downloads updates so that I can install them quickly once I review them. Very handy!

The squid adblock and NAS backup scripts are self explanatory...

I have a samba share that is writeable by all as a "flash drive" replacement for transferring files around the office between computers.

Screen on and off controls what times my workplace's kiosk screen is on and off with xset. Sadly there's some bug on Debian 6.0 that makes the screen turn itself back on again. Any ideas?

And Verify_stream_svcs.sh used to make sure that our internet radio stream used for hold music was still working, but now we use locally stored royality-free MP3s so that entry probably is no longer necessary.

wastholm · 10 months

Getting screenshots from various news sites (including Reddit) for use in my slide show screensaver.
Listing the names and versions of all installed packages and storing an alphabetized list in a file under /etc.
Automatically committing any uncommitted changes in the /etc tree to a Subversion repository.

akranis · 10 months

I don't have anything set up in the crontab of my desktop machines. But on my server I have it set up so that bashpodder fetches new episodes at midnight.

I also have SpiderOak run every ten minutes in batchmode.

msp3k · 10 months

scrape-redit-for-popular-posts-and-then-repost.py
download-4chan-and-post-to-redit.sh
automated-anonymous-targeting-and-hacking.pl
i-dont-always-automate-but-when-i-do-i-generate-tired-memes.py
robo-karma-whoring.py

274Below · 10 months

Well, root has two entries: 20 3 */3 * * su src -s /bin/bash --session-command="~src/repack.sh" 17 0 * * * su src -s /bin/bash --session-command="~src/update-all.sh"

These are simply there to update multiple git/svn repos that I use frequently. The 'src' user has a shell of /usr/bin/git-shell which prevents it from executing pretty much anything, so the workaround is to execute a proper shell via su from root.

The minecraft user has several relevant entries in there: # restart on reboot @reboot ~/scripts/startme

# backups
*/15 * * * * ~/scripts/backup-execute
2 4 * * * ~/scripts/backup-cleanup

# map update + upload
5 * * * * ~/scripts/map-update 1>/dev/null

The first entry should be self explanatory. The backup entries are rsync hard-link based backups, and include communication with the minecraft server to prevent autosaving while the backup is running (and then restarts autosaving once complete). The cleanup is a simple find that removes all backups older than X many days. The very last entry should be self explanatory as well. These scripts actually work on two servers, not one, and include locks to prevent long running jobs from being attempted twice at once.

I may wind up converting these scripts to be run from the root user with the above su magic and giving minecraft a /sbin/nologin shell, just in case.

I also have this one-liner for 'bt': @reboot ~/startme

... which faithfully starts rtorrent in a looping screen session on reboot.

rabel · 10 months

0 9 * * * ~/check_payroll.sh

Reads a little file with payroll dates and sends an e-mail 4 days prior to payroll to my crappy consulting company asking them if there's any problems with my payroll check.

After the 3rd time of checking my bank account for the amount of my latest paycheck only to find that it wasn't auto-deposited for whatever reason, I've had to take things into my own hands. They refuse to let me know if I'm not going to get paid because the client forgot to authorize my timesheet or whatever. It's never anything serious or hard to fix, but they just absolutely refuse to let me know if something happened and I won't be getting paid. Mind you my timesheet is due 2 weeks prior to payroll so there's plenty of time to fix any issues... if they would let me know there was a problem.

pilkch · 10 months

buildall

andersonmanly · 10 months

0 8 * * *       /root/scripts/system_check/daily_status.sh > /dev/null 2>&1

E-mails me the status of the server every morning at 0800. Includes things like the disk usage, internal temperature of the system/drives, up-time (551 days!) and load, raid status, snapshot usage, etc.

acphilly · 10 months

nothing. i started using jenkins so i know if a cron run fails and if so why.

apollotiger · 10 months

0 6 * * * /usr/local/bin/sa-learn --ham $HOME/mail/inbox
30 6 * * * /usr/local/bin/sa-learn --spam $HOME/mail/uncaught-spam

Not too interesting, I’m afraid.

Centropomus · 10 months

0 * * * * /home/me/bin/run_queries.py

Because I'm way too lazy to set up django or something like that to run expensive queries asynchronously and cache the results.

the_merk · 10 months

a script to send an easily filtered email to the email account linked to my gmail.

gmail checks your pop mailboxes based on the amount of mail it pulled in the last x number of checks. so if you don't get a lot of mail for a period, it will check like once an hour. if you want a centralized email box, that's irritating. so i send an email a minute from my linux box to emailA, which gets picked up by emailB@gmail, which is filtered immediately to trash. then like once a month i apply a filter to emailA.

minhajuddin · 10 months

* * * * * /bin/bash -i -l -c 'dnotify' > /tmp/dnotify.log 2>&1\n

It uses a gem called dnotify to show me passive reminders using libnotify.

Buckwheat469 · 10 months

*/2 * * * * php "/home/user/Videos/Security Cameras/sync.php"

Syncs security camera video to a Dropbox folder every 2 minutes. Dropbox then syncs the folder. The script will make sure there's only enough files to fill the space (5MB per video, 2G max, about 375 videos should suffice). It makes sure that if anyone steals my computer I will have at least a video of them doing it on the internet.

Here's the synchronization code.

shadyjim · 10 months

00 10 * * * /usr/bin/gitpulls.sh

Script pulls all websites to their latest versions from Github at 10AM every morning.

shaurz · 10 months

Nothing on my main PC. File server has a daily backup script.

noisesmith · 10 months

Touch a file on my stupid Toshiba 1tb external drive once every minute so the drive doesn't fall asleep (asleep in a way that it can only be woken manually - buggy firmware).

chka · 10 months

Shell scripts for a basic smart folder thing for my Samba server with Added last week, ...last month, and so on.

If anyone knows how to do "smart folders" in a better way, let me know!

turing_inequivalent · 10 months

@daily  ID=backup-home ~/Scripts/daily-backup.sh

A script that backups my home and also saves a list of all the files, in case something goes terribly wrong.

deusnefum · 10 months

This is on my router/firewall/server. I don't think I have anything running on my desktop

[root@helium ~]# ls /etc/cron /etc/cron.d:

/etc/cron.daily: logrotate man-db shadow

/etc/cron.hourly: adjtime connection_check.sh

/etc/cron.monthly:

/etc/cron.weekly: squid

check_connection.sh is a hacky little script that restarts the network and a few other things if the network goes down. My internet connection has become remarkably robust since I implemented that script.

sekh60 · 10 months

0 0 1 * * echo repair >> /sys/block/md4/md/sync_action >>/root/scrub-log.txt

sebnukem · 10 months

rsync command to mirror the latest fedora-update yum repository to my home server every night at 2 am. yum updates are ridiculously fast.

tmahmood · 10 months

okay, I have a crazy one ... As I do not have outside access of my main workstations, I have a small cron script running that checks a folder for files and execute them and save the results in a log file.

This folder is synced with dropbox. With this now I can write up a simple executable file and put , which will get execute each hour and do some stuffs on my main workstation. no root access. Simple :)

LiveMaI · 10 months

There's a kernel bug with my LAN chipset that disables the wake-on-lan capability every time the system boots, so I have:

@reboot /sbin/ethtool -s eth0 wol g

in order to get around that.

0618 · 10 months

a lot

Croooow · 10 months

crontab: # m h dom mon dow user command 7 * * * * { test -d $HOME/.cron.hourly && cd $HOME; } && run-parts --report $HOME/.cron.hourly 03 7 * * * test -r $HOME/.anacrontab && /usr/sbin/anacron -s -t $HOME/.anacrontab -S $HOME/.cache/anacron # retrieve remote mail every 15 min. 8,23,38,53 * * * * test -x $HOME/.getmail/run-getmail && $HOME/.getmail/run-getmail --quiet

~/.anacrontab: # ~/.anacrontab: user configuration file for anacron

# See anacron(8) and anacrontab(5) for details.

1   5   cron.daily   cd $HOME && nice run-parts --report $HOME/.cron.daily
7   10  cron.weekly  cd $HOME && nice run-parts --report $HOME/.cron.weekly
@monthly    15  cron.monthly cd $HOME && nice run-parts --report $HOME/.cron.monthly

Then I throw scripts into the appropriate directories for hourly, daily, weekly, and monthly jobs.

nik_doof · 10 months

Mine allows for my vcs home system to work nicely, each vcs component can place files in the required folders to execute scripts as needed. run-parts is a commonly used script in Debian, not sure about other distros.

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin:$HOME/bin

# run-parts
01 * * * * run-parts $HOME/.crontab/hourly
02 4 * * * run-parts $HOME/.crontab/daily
22 4 * * 0 run-parts $HOME/.crontab/weekly
42 4 1 * * run-parts $HOME/.crontab/monthly
@reboot    run-parts $HOME/.crontab/reboot

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