Linux Photography by Dmitri Popov

Author:Dmitri Popov
Language: eng
Format: epub
Publisher: Coffee, Code, Camera
Published: 2020-05-18T07:43:50+00:00

Use filters in rclone

Filtering options and patterns in rclone can be used to configure rclone to skip certain files and directories. Filtering rules in rclone work with most commands, including copy and sync. A filtering rule in rclone consists of two parts: an exclude or include subcommand and a filtering pattern. rclone features four filtering subcommands: --exclude, --exclude-from, --include, and --include-from. The first two commands can be used to exclude files, while the other two let you limit the current operation only to the specified files. The --exclude subcommand allows you to specify the filtering pattern in-line, for example:

rclone --exclude *.NEF sync /path/to/source remote:destination

This command syncs everything except the RAW files with the .NEF extension. Instead of specifying a filtering rule on the fly, you can save a list of filtering patterns in a text file and use the --exclude-from subcommand with it:

rclone --exclude-from=filters.txt copy /path/to/source remote:destination

The --include command can come in useful when you need to limit rclone to a specific subset of files. For example, if you want to sync TIFF and JPEG files in a directory and skip the rest, the following filtering rule does the job:

rclone --include *.{tif,jpg} copy /path/to/source remote:destination

Similar to --exclude-from, the --include-from command can read filtering patterns from a text file.

Using the exclude and include subcommands, you can create filtering rules that either skip or include matching files. But what if you need to create a set of filters that combines both? Then the --filter-from subcommand is what you need. This subcommand reads a text file containing include and exclude filtering rules and applies them to the current rclone operation:

rclone --filter-from=filters.txt sync /path/to/source remote:destination

Each line in the specified text files contains a filtering rule that starts with either the + (include) or - (exclude) prefix, for example:

+ *.jpeg + *.tiff - *.MP4 - *.xmp

As you may have noticed, filtering patterns in rclone are based on wild cards. While they are not as powerful as regular expressions, wild cards are significantly easier to master. And if you used wild cards when working from the command line, you won’t have problems composing filtering rules for rclone.

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