#crontab — Public Fediverse posts

Done! Project deploy a self-hosted Vaultwarden instance complete.

It was easier than I had thought it thought it would be. The only bugs I dealt with came from Incus, and they were easy to solve. And was my first time using docker on a remote server 🥳😂.

After the instance was deployed, I wrote a bash script to backup my data ... used crontab to automate it.

#selfhosted #linux #incus #vaultwarden #password #security #docker #container #bash #crontab #deploy #devops #sysadmin

Maintenance Proxmox & Docker : comment je suis devenu spectateur de mon infrastructure

https://blablalinux.be/2026/04/08/strategie-automatisation-globale/

Always the same in #SelfHosting ...

People: I forget to renew the (Let´s Encrypt) certificates ... mimimi
Me: my best buddy #crontab does that for me ​:floof_peek:​

Почему я написал Ёбифай: свой планировщик для фоновых задач на Python

Но очень быстро оказывается, что настоящая сложность не в самих задачах, а в инфраструктуре вокруг них. Сначала хочется просто запускать код в фоне. Потом появляются ретраи, таймауты, логирование, контроль выполнения. Ещё чуть позже всплывают совсем неприятные вопросы: что делать с пропущенными запусками после рестарта, как не дублировать задачи и где вообще должна жить логика планирования. В какой-то момент становится очевидно:

https://habr.com/ru/articles/1018646/

#scheduler #cron #crontab #cronjob #background_job #background_jobs #asyncio

Как мы устали настраивать Crontab и сделали свой cron-manager

В какой-то момент cron-заданий становится много, появляются сложные зависимости между скриптами, когда результат выполнение одного важен для начала работы другого. Балансировать такую историю доводится сис.админу, DevOps'у или разработчику. С этого и начинается наш рассказ.

https://habr.com/ru/articles/1003006/

#cron #crontab #cronjob #cronjob #продукт #продуктовая_разработка

Selfhosting is nice, and it comes with a price to pay.

For me ? It's time, and I have plenty to give away, given that's my passion.

For my SO ? The unbearable noise of rattling disk needles to write on their very precious platters (especially now, thank you AI bullcrap)

The solution ? A nice cron-based compromise, and I feel like someone could get inspired by this :)

# Stop qbittorrent - weekday evenings at 17:00 Mon-Fri
0 17 * * 1-5 cd /opt/services/qbittorrent && docker compose stop

# Stop qbittorrent - weekends at 8:00 Sat-Sun
0 8 * * 6,0 cd /opt/services/qbittorrent && docker compose stop

# Start qbittorrent - every day at 23:00
0 23 * * * cd /opt/services/qbittorrent && docker compose start

#selfhosting #selfhosted #homelab #torrent #qbittorrent #harddrive #disk #nas #so #ai #cron #crontab #scheduling #linux #opensource #docker #dockercompose

Selfhosting is nice, and it comes with a price to pay.

For me ? It's time, and I have plenty to give away, given that's my passion.

For my SO ? The unbearable noise of rattling disk needles to write on their very precious platters (especially now, thank you AI bullcrap)

The solution ? A nice cron-based compromise, and I feel like someone could get inspired by this :)

# Stop qbittorrent - weekday evenings at 17:00 Mon-Fri
0 17 * * 1-5 cd /opt/services/qbittorrent && docker compose stop

# Stop qbittorrent - weekends at 8:00 Sat-Sun
0 8 * * 6,0 cd /opt/services/qbittorrent && docker compose stop

# Start qbittorrent - every day at 23:00
0 23 * * * cd /opt/services/qbittorrent && docker compose start

#selfhosting #selfhosted #homelab #torrent #qbittorrent #harddrive #disk #nas #so #ai #cron #crontab #scheduling #linux #opensource #docker #dockercompose

Selfhosting is nice, and it comes with a price to pay.

For me ? It's time, and I have plenty to give away, given that's my passion.

For my SO ? The unbearable noise of rattling disk needles to write on their very precious platters (especially now, thank you AI bullcrap)

The solution ? A nice cron-based compromise, and I feel like someone could get inspired by this :)

# Stop qbittorrent - weekday evenings at 17:00 Mon-Fri
0 17 * * 1-5 cd /opt/services/qbittorrent && docker compose stop

# Stop qbittorrent - weekends at 8:00 Sat-Sun
0 8 * * 6,0 cd /opt/services/qbittorrent && docker compose stop

# Start qbittorrent - every day at 23:00
0 23 * * * cd /opt/services/qbittorrent && docker compose start

#selfhosting #selfhosted #homelab #torrent #qbittorrent #harddrive #disk #nas #so #ai #cron #crontab #scheduling #linux #opensource #docker #dockercompose

Selfhosting is nice, and it comes with a price to pay.

For me ? It's time, and I have plenty to give away, given that's my passion.

For my SO ? The unbearable noise of rattling disk needles to write on their very precious platters (especially now, thank you AI bullcrap)

The solution ? A nice cron-based compromise, and I feel like someone could get inspired by this :)

# Stop qbittorrent - weekday evenings at 17:00 Mon-Fri
0 17 * * 1-5 cd /opt/services/qbittorrent && docker compose stop

# Stop qbittorrent - weekends at 8:00 Sat-Sun
0 8 * * 6,0 cd /opt/services/qbittorrent && docker compose stop

# Start qbittorrent - every day at 23:00
0 23 * * * cd /opt/services/qbittorrent && docker compose start

#selfhosting #selfhosted #homelab #torrent #qbittorrent #harddrive #disk #nas #so #ai #cron #crontab #scheduling #linux #opensource #docker #dockercompose

Selfhosting is nice, and it comes with a price to pay.

For me ? It's time, and I have plenty to give away, given that's my passion.

For my SO ? The unbearable noise of rattling disk needles to write on their very precious platters (especially now, thank you AI bullcrap)

The solution ? A nice cron-based compromise, and I feel like someone could get inspired by this :)

# Stop qbittorrent - weekday evenings at 17:00 Mon-Fri
0 17 * * 1-5 cd /opt/services/qbittorrent && docker compose stop

# Stop qbittorrent - weekends at 8:00 Sat-Sun
0 8 * * 6,0 cd /opt/services/qbittorrent && docker compose stop

# Start qbittorrent - every day at 23:00
0 23 * * * cd /opt/services/qbittorrent && docker compose start

#selfhosting #selfhosted #homelab #torrent #qbittorrent #harddrive #disk #nas #so #ai #cron #crontab #scheduling #linux #opensource #docker #dockercompose

I recently had to do a complete wipe and re-install of my #wpsd #hamradio #hotspot.
Most of the settings were retained by wpsd's backup/restore functions, but my #crontab had to be recreated from scratch.

Luckily I had blogged some of it last year:
https://blog.k3can.us/posts/2025/mar/2025-03-13_automatinganam/
#amateurradio

I recently had to do a complete wipe and re-install of my #wpsd #hamradio #hotspot.
Most of the settings were retained by wpsd's backup/restore functions, but my #crontab had to be recreated from scratch.

Luckily I had blogged some of it last year:
https://blog.k3can.us/posts/2025/mar/2025-03-13_automatinganam/
#amateurradio

Sometimes the only emails I see for days are the daily rsnapshot crontab output emails.

I'm totally ok with this.

In fact, this is preferred.

#Linux #RunBSD #crontab

@pfr As you wish :drgn_blep:

#crontab #FreeBSD #NetBSD

Show me your #crontab

Yeah meine zweite Festplatte ist heute angekommen !

/dev/sdb 983379700 400782140 5325 43% /mnt/data

/dev/sdc1 983378676 307661060 6256 33% /mnt/data2

Jetzt nur noch mit einem #rsync job täglich #crontab alles von einer Platte auf die andere Platte schaufeln und ich habe wenigstens schonmal ein bisschen #Ausfallsicherheit #backup #Datensicherung für meinen #HomeServer realisiert.

Parallel mache mit "duplicati" ein verschlüsseltes Backup des Betriebssystems in mein #ondrive da habe ich noch 1 TB, warum nicht nutzen wenn man es eh schon hat.

Yeah meine zweite Festplatte ist heute angekommen !

/dev/sdb 983379700 400782140 5325 43% /mnt/data

/dev/sdc1 983378676 307661060 6256 33% /mnt/data2

Jetzt nur noch mit einem #rsync job täglich #crontab alles von einer Platte auf die andere Platte schaufeln und ich habe wenigstens schonmal ein bisschen #Ausfallsicherheit #backup #Datensicherung für meinen #HomeServer realisiert.

Parallel mache mit "duplicati" ein verschlüsseltes Backup des Betriebssystems in mein #ondrive da habe ich noch 1 TB, warum nicht nutzen wenn man es eh schon hat.

@gary_alderson Indeed. Remember to enable the actualize script through #crontab: https://freshrss.github.io/FreshRSS/en/admins/08_FeedUpdates.html

🔍 / #software / #library / #python

#Crontab module for reading and writing crontab files and accessing the system #cron automatically and simply using a direct API.

🐱🔗 https://laravista.altervista.org/CatLink/links/325

#catlink #SoftwareLibrary #SoftwareLibraryPython #PythonCrontab

JSON just popped into my head:

https://ecma-international.org/wp-content/uploads/ECMA-404_2nd_edition_december_2017.pdf

This PDF, and the website (https://www.json.org/json-en.html) have syntax diagrams for each bit, but I don't see any formal grammar definition being used, which is surprising.

I've not checked what YAML does, but it's just interesting to note.

Heck, even #crontab's config file has BNF in the man page... or used to, I've checked lately.

Зачем нужен ArgoCD, если можно поставить cron с git pull?

Инфраструктура как код, GitOps, автоматизация — все эти слова давно перестали быть модными терминами и стали частью повседневной жизни инженера. Но вместе с этим появляются и вопросы: а всегда ли нужно внедрять тяжелые инструменты? Например, зачем нужен ArgoCD, если можно просто настроить cron с git pull на нужный сервер? Попробуем разобраться, в чём разница между этими подходами, какие задачи они решают, где их границы применимости и, главное, в каких случаях cron — это «дешево и сердито», а когда он становится «дешево, но больно».

https://habr.com/ru/articles/912014/

#argocd #devops #gitops #cron #crontab #автоматизация #cd #continuous_deployment

Today I hate #InnoDB fragmentation, and incompatible #crontab files across different versions of #cron

Today I hate #InnoDB fragmentation, and incompatible #crontab files across different versions of #cron

Today I hate #InnoDB fragmentation, and incompatible #crontab files across different versions of #cron

Today I hate #InnoDB fragmentation, and incompatible #crontab files across different versions of #cron

Today I hate #InnoDB fragmentation, and incompatible #crontab files across different versions of #cron

I was configuring a daily crontab task and I couldn't resist:

20 16 * * *

xD

#crontab

#question #bash #crontab #mysql :

j'ai un script qui fait

for db in database1 database2 database3;
do
echo $db
if [[ "$db" != "database2" ]]; then
echo "dumping database $db"
mysqldump -u $USER -p$PASSWORD --databases $db > $db.sql
fi
done

quand je le lance directement, pas de souci, ça fonctionne. mais en tâche #cron, rien, que dalle, que pouic, mon cul dans les orties.
et je ne vois pas pourquoi.

Une idée ?

Edit : La solution à mon problème ici par @Dominix :

https://mastodon.social/@Dominix/114132696033730693

🐧 Que ce soit en local ou sur votre serveur, Crontab permet de programmer des scripts et actions qui se feront à intervalle régulier sur votre machine. Très pratique, même pour des choses assez basique. Ça fait des années que j'utilise Linux au quotidien mais paradoxalement j'ai commencé à m'emparer de crontab réellement il y a assez peu de temps.
Bref comme les intervalles sont une galère à indiquer, ce site est bien pratique pour les encoder https://crontab.cronhub.io/

#linux #crontab

Wieso hat die Welt eigentlich keine coole kleine #GUI für die #crontab erfunden?

So nach 40 Jahren wär's fei scho mol Zeit, gell?

(Oder wieso gibt es nix Gnome Scheduler mäßiges mehr?)

#cron #linux

@dside Чтобы не пропустить заранее известную дату (например, продлить домен или сертификат), прекрасно справится #crontab.

Y otra entrada en la #Wiki que me faltaba: https://docs.lynze.net/books/linux/page/cron
Apuntes sobre #cron
#Linux #crontab

#Linux
#Debian
#systemd
#crontab

OpenBSD crond / crontab set_range() heap underflow - CVE-2024-43688

https://www.supernetworks.org/CVE-2024-43688/openbsd-cron-heap-underflow.txt

https://vulnerability.circl.lu/cve/CVE-2024-43688

#vulnerability #cron #crontab #infosec #crond #openbsd #unix

Need a pet sitter for your aquarium while you’re away? Create an automatic feeder with a Raspberry Pi Zero. https://www.makerspace-online.com/fish-food/ #automation #feeder #RaspberryPi #ZeroW #network #CLI #CommandLine #crontab #projects #makers

A new "Your own extras" is available:

Check the new "Donation list" to support your favourite free and open source software.
It includes all the #donation links with all the listed #tutorials and #services we provide.

https://wiki.techsaviours.org/en/extras/donation_list

Still missing links:
- #lvm
- #luks
- #networkmanager
- #zram
- #sddm
- #firewalld
- #cronie ( #crontab )
- #rsync
- #AdGuardHome
- #redis
- #docker
- #LibreWolf
- #arkenfox
- #CustomNewTabPage
- #ProxySwitchOmega
- #Icecraven

#foss #donate

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – backup [ENG 🇬🇧]

#archivist #backup #borgbackup #cron #crontab #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup-eng/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – backup [ENG 🇬🇧]

#archivist #backup #borgbackup #cron #crontab #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup-eng/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – backup [ENG 🇬🇧]

#archivist #backup #borgbackup #cron #crontab #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup-eng/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – backup [ENG 🇬🇧]

#archivist #backup #borgbackup #cron #crontab #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup-eng/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – backup [ENG 🇬🇧]

#archivist #backup #borgbackup #cron #crontab #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup-eng/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – kopia zapasowa

#archivist #automatyzacja #backup #borgbackup #cron #crontab #kluczessh #kopiazapasowa #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost #zadaniacron

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – kopia zapasowa

#archivist #automatyzacja #backup #borgbackup #cron #crontab #kluczessh #kopiazapasowa #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost #zadaniacron

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – kopia zapasowa

#archivist #automatyzacja #backup #borgbackup #cron #crontab #kluczessh #kopiazapasowa #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost #zadaniacron

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – kopia zapasowa

#archivist #automatyzacja #backup #borgbackup #cron #crontab #kluczessh #kopiazapasowa #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost #zadaniacron

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup/

🇵🇱 Nowy wpis na blogu! / 🇬🇧 New blog post!

YunoHost – kopia zapasowa

#archivist #automatyzacja #backup #borgbackup #cron #crontab #kluczessh #kopiazapasowa #linux #nano #opensource #restic #scp #selfhosted #ssh #sshkeys #vps #yunohost #zadaniacron

Autor: @[email protected]

https://blog.tomaszdunia.pl/yunohost-backup/

Cómo configurar Bash para tener un historial infinito usando formato
fecha y hora

#Bash #bashrc #config #crontab #history #prompt #tty

https://osiux.com/2021-03-17-historial-infinito-en-bash.html

How do you create a #cron job for a specific user?

a) Log in as that user and type crontab -e to open the cron editor.
b) Open the crontab file in the user home directory and add what you want to add.
c) As root, type crontab -e username.
d) As root, type crontab -u username -e.

#Linux #quiz #crontab #rhel #redhat #ex200 #gnulinux #rhcsa #LinuxQuiz

In case you needed, in Mac OS, there is no such thing as crontab logs (and no syslog either).

Crontab logs its stuff to
`/var/mail/$whateverYourUserNameIs`

so you can

`tail -100f /var/mail/volkan`

(replace `volkan` with your mac user) to get the cron job execution results.

#linux #tips #cron #CronJobs #crontab #DevEx

#Cron #CheatSheet from #NixGems ( https://gitlab.com/DeaDSouL/NixGems )

#Crontab