Posts

delete zfs snapshots

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Oneliner which lists all snapshots of a dataset, discards those which match against grep an feeds the remaining ones to zfs destroy command

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deleting timemachine backups

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Have you ever wanted to clean up your Time Machine backup destination? With these two little command you can list all Backups your Time Machine did and delete those you don’t need any more.

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change permissions recursively

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Sometime you may need to execute a command recursively on certain type of object. For example you may need to change permissions to all files in the current directory and all subdirectories but not the directories. Therefore you can use the find utility.

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disable icloud as default save location

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disable icloud as default save location If you don’t want to use iCloud as your default location for saving document just enter the following command in a Terminal defaults write NSGlobalDomain NSDocumentSaveNewDocumentsToCloud -bool false

serial console in debian linux

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To get full access to your Linux Server via a serial connection you need a few little tweaks. You have to tell grub to use the serial console and to display a simple chooser. You also have to tell the kernel to print its output to the serial port as well.

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asus r252b keyboard error

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After installing ARCH Linux on a Asus EEE PC R252B I noticed that sometimes the Keyboard stops working during OS startup. (Keyboard works propperly in BIOS)

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remove backuppc backups manually

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This is an example how to remove backup number 45 from localhost su -l backuppc cd /var/lib/backuppc/pc/localhost rm -fR 45 That will delete the backup, then you need to run the /usr/share/backuppc/bin/BackupPC_nightly 0 255 to actually remove the files from the pool.

disable local timemachine snapshots

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to retrieve expensive disk space on your local SSD you can disable Time Machine’s local snapshot feature. But remember to keep your external backup up to date 😉

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