68 lines
2.6 KiB
Bash
Executable File
68 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# by x1phosura
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# Synchronizes the destination to the source, preserving metadata (owner,
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# group, permissions, timestamps, etc...) and symbolic links. It also skips
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# replacing files based on a calculated checksum, which can save a lot of time
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# with backups! ssh is used for encryption, and the script displays the sync
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# progress with what SHOULD be human-readable numbers.
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#
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# Does NOT need to be run with sudo (and shouldn't).
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echo "Enter the username for the remote machine: "
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read ruser
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echo "Enter the hostname (if DNS) or IPv4 address for the remote machine: "
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read rhost
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# '-a' preserves attributes like permissions, owner/group, and more, '-v' is
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# verbose, '-h' is "human readable", and '-c' compares files to-be synced/
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# transfered, if already existing, by checksum (rather than by filesize or
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# modified time). '-e' specifies the remote shell to use, which here is ssh
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# '--stats' and '--progress' simply show a lot of info about the file transfers
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# '-z' compresses data during the transfer
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options="-avhcz -e ssh --stats --progress"
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echo "Delete files at destination not present in source directories? (y/n):"
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read del_remote
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if [ "$del_remote" = "y" ]; then # TEST THIS OPTION OUT BEFORE USE!!
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# '--delete' deletes files at the destination that are NOT present from the
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# source. USE CAREFULLY!! '--force' modifies '--delete' to handle something
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# do to with non-empty directories being deleted or overridden, so I'm
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# guessing I want it
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echo "Extraneous files found in destination will be deleted."
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options="$options --delete --force"
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elif [ "$del_remote" = "n" ]; then
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echo "Extraneous files found in destination will be kept."
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else
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echo "Error: expected 'y' or 'n' character as input. Aborting for safety..."
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exit 1
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fi
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# Note: as they currently stand, DO NOT add trailing slashes to these
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# filenames!! Why? Here is the best explanation I've seen as to how trailing
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# slashes work in rsync:
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# Without a slash on the source directory means copy both the source
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# directory, and the contents (recursively if specified) to the destination
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# directory while adding a trailing slash means only copy the contents of
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# the source directory, recursively if specified, to the destination.
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# TODO: auto-generate paths (or read from textfile) instead of hardcoding
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filelist="$HOME/73h4x \
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$HOME/Documents \
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$HOME/Downloads \
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$HOME/OSes \
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$HOME/Library \
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$HOME/Subgenius \
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$HOME/temp"
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# Command structure:
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# rsync $options src/dir1 src/dir2... "$ruser"@"$rhost":dest/dir/
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# copy from here TO a remote destination
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rsync $options $filelist "$ruser"@"$rhost":~/
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# copy from a remote destination TO here (TODO)
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