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