1.2 KiB
Automatic Backups with find
find /home/"$(whoami)" -type f -size -2M | xargs zip -u backup
Tar Archives
Create ze files:
tar czf file.tar.gz file1 file2
Extract ze files:
tar xzf file.tar.gz
The .tar extension means two or more files are bundled together into a single file. The .tar.gz means compression.
Tarballs come with a number of arguments.
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c means 'create'.
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v means 'verbose'.
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f means 'this is the file' and must always be the ultimate argument.
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z means compression.
So we can compress file1 and file2 into a single tar called 'archive' with:
tar czvf archive.tar.gz file1 file2
Extraction uses 'x' instead of 'c'.
tar xzvf archive.tar.gz
Create a very compressed file:
tar cfj super-compressed.tar.gz file1 file2
Example - Compressing all Latex Files in /home/
sudo find ~ -maxdepth 4 -name "*.txt" | xargs tar cvf latex-bundle.tar.gz
ssh backup
Back up an unmounted partition with ssh:
sudo dd if=/dev/sda1 | ssh -C ghost@192.168.0.10 "dd of=/home/ghost/backup.img" status=progress
img.xz
Install xz.
Unzip the image with:
unxz void.img.xz
This then deletes the .xz file. To keep it:
unxz --keep void.img.xz