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Homelab/Linux antisèche thuysse cheatsheet.md
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Homelab/Linux antisèche thuysse cheatsheet.md
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# Installer Linux
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cf [[Installer serveur Linux]]
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# Copier avec Rsync
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Locally :
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```bash
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rsync -avhW --no-compress --progress /src/ /dst/
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```
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Over the network :
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```sh
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rsync -rtvuP source_rep/ destination_rep/
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```
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Options
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```
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-a is for archive, which preserves ownership, permissions etc.
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-v is for verbose, so I can see what's happening (optional)
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-h is for human-readable, so the transfer rate and file sizes are easier to read (optional)
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-W is for copying whole files only, without delta-xfer algorithm which should reduce CPU load
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--no-compress as there's no lack of bandwidth between local devices
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--progress so I can see the progress of large files (optional)
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```
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```sh
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rsync -artvuP --info=progress2 --itemize-changes --verbose /mnt/nestor-v3/mediaLibrary/ /mnt/TNAS/mediaLibrary/
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```
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| _Les Options_ | Descriptions |
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| ------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| -a | Mode archivage. Équivalent à -rlptgoD |
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| -g | Préserve le groupe |
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| -D | Préserve les périphériques. Nécessite d’être root |
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| -l | Copie les liens symboliques comme liens symboliques |
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| -o | Préserve le propriétaire. Nécessite d’être root |
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| -p | Préserve les permissions |
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| -o | Préserve le propriétaire. Nécessite d’être root |
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| -P | Combine les options –progress et –partial |
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| -r | Copie récursive des répertoires |
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| -t | Préserve les dates |
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| -u | Cela force rsync à ignorer tous les fichiers qui existent sur la destination et dont l’heure de modification est plus récente que le fichier source. |
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| -v | Mode verbose pour afficher de nombreuses informations sont affichées lors du transfert. |
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| -z | Compresse le fichier pour un meilleur transfert par le réseau |
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| –delete | Synchronisation et miroir parfaite, le fichier de destination sera supprimé, s’il n’est pas présent dans la source |
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| –exclude= | Exclure des fichiers de la sauvegarde |
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| –max-size | Indique une taille maximal de fichier à ne pas transférer |
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| –partial | Par défaut, rsync supprimera tout fichier partiellement transféré si le transfert est interrompu. <br>–partial indique à rsync de conserver le fichier partiel, ce qui devrait accélérer le transfert du reste du fichier. |
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| –progress | Affiche une barre de progression |
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Source : [rsync - malekal.com](https://www.malekal.com/rsync-synchroniser-copier-fichiers-distance-ou-locaux/)
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Pour que rsync contine meme quand on arrête la session ssh :
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Start a tmux session:
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```sh
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tmux new -s rsync_session
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```
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Run the rsync command, then detach using Ctrl+B, then D.
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To reattach:
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```sh
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tmux attach -t rsync_session
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```
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# Tranfser via FTP
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```sh
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lftp -u gribse,BouncingYoyoN09 217.128.128.22 -e "mirror /media/md0/mediaLibrary/shows /mnt/TNAS/mediaLibrary/shows; bye"
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```
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Multiple in parallel :
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```sh
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lftp -u gribse,BouncingYoyoN09 217.128.128.22 -e "mirror --parallel=5 /media/md0/containers/immich /mnt/TNAS/docker-data/immich; bye"
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```
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# Estimer % de transfert
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en comparant la taille de 2 dirs, source & dest
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```sh
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du -sb /mnt/TNAS/docker-data/immich /mnt/nestor-v3/containers/immich | awk 'NR==1{s1=$1} NR==2{s2=$1; printf "%s %s %.0f\n", s1, s2, (s1/s2)*100}' | numfmt --to=iec --field=1,2 | awk '{printf "%s/%s (%s%%)\n", $1, $2, $3}'
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```
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Output :
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> 1.8T/2.1T (87%)
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# Mesurer taille directory et sous-dirs
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This does what you're looking for:
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```sh
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du -sh /* | sort -h
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```
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What this means:
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- `-s` to give only the total for each command line argument.
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- `-h` for human-readable suffixes like `M` for megabytes and `G` for gigabytes (optional).
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- `/*` simply expands to all directories (and files) in `/`.
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[linux - How to get the summarized sizes of directories and their subdirectories? - Super User](https://superuser.com/questions/162749/how-to-get-the-summarized-sizes-of-directories-and-their-subdirectories)
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# Update docker container images manually
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```yaml
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docker compose pull xxxxx
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docker compose up --force-recreate --build -d xxxxx
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docker image prune -f
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```
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source : https://stackoverflow.com/questions/49316462/how-to-update-existing-images-with-docker-compose
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Update immich :
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```sh
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docker compose pull immich-database immich-redis immich-server immich-microservices immich-machine-learning
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docker compose up --force-recreate --build -d immich-database immich-redis immich-server immich-microservices immich-machine-learning
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docker image prune -f
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```
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# Docker ports
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```yml
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ports:
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- 5984:5984
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- outside container:inside container
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```
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# Generate random number
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```sh
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openssl rand -base64 12
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```
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- -hex pour hex value
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- -base64 pour des caractères
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- rien pour du gibberish
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# Shell
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## Go to beginning of line
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Crtl + A
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## Copy output of command to clipboard
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```sh
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cat ~/.ssh/id_rsa.pub | xclip -selection clipboard
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```
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