--- title: "Filtering" description: "Filtering, includes and excludes" date: "2016-02-09" --- # Filtering, includes and excludes # Rclone has a sophisticated set of include and exclude rules. Some of these are based on patterns and some on other things like file size. The filters are applied for the `copy`, `sync`, `move`, `ls`, `lsl`, `md5sum`, `sha1sum`, `size`, `delete` and `check` operations. Note that `purge` does not obey the filters. Each path as it passes through rclone is matched against the include and exclude rules like `--include`, `--exclude`, `--include-from`, `--exclude-from`, `--filter`, or `--filter-from`. The simplest way to try them out is using the `ls` command, or `--dry-run` together with `-v`. `--filter-from`, `--exclude-from`, `--include-from`, `--files-from`, `--files-from-raw` understand `-` as a file name to mean read from standard input. ## Patterns ## The patterns used to match files for inclusion or exclusion are based on "file globs" as used by the unix shell. If the pattern starts with a `/` then it only matches at the top level of the directory tree, **relative to the root of the remote** (not necessarily the root of the local drive). If it doesn't start with `/` then it is matched starting at the **end of the path**, but it will only match a complete path element: file.jpg - matches "file.jpg" - matches "directory/file.jpg" - doesn't match "afile.jpg" - doesn't match "directory/afile.jpg" /file.jpg - matches "file.jpg" in the root directory of the remote - doesn't match "afile.jpg" - doesn't match "directory/file.jpg" **Important** Note that you must use `/` in patterns and not `\` even if running on Windows. A `*` matches anything but not a `/`. *.jpg - matches "file.jpg" - matches "directory/file.jpg" - doesn't match "file.jpg/something" Use `**` to match anything, including slashes (`/`). dir/** - matches "dir/file.jpg" - matches "dir/dir1/dir2/file.jpg" - doesn't match "directory/file.jpg" - doesn't match "adir/file.jpg" A `?` matches any character except a slash `/`. l?ss - matches "less" - matches "lass" - doesn't match "floss" A `[` and `]` together make a character class, such as `[a-z]` or `[aeiou]` or `[[:alpha:]]`. See the [go regexp docs](https://golang.org/pkg/regexp/syntax/) for more info on these. h[ae]llo - matches "hello" - matches "hallo" - doesn't match "hullo" A `{` and `}` define a choice between elements. It should contain a comma separated list of patterns, any of which might match. These patterns can contain wildcards. {one,two}_potato - matches "one_potato" - matches "two_potato" - doesn't match "three_potato" - doesn't match "_potato" Special characters can be escaped with a `\` before them. \*.jpg - matches "*.jpg" \\.jpg - matches "\.jpg" \[one\].jpg - matches "[one].jpg" Patterns are case sensitive unless the `--ignore-case` flag is used. Without `--ignore-case` (default) potato - matches "potato" - doesn't match "POTATO" With `--ignore-case` potato - matches "potato" - matches "POTATO" Note also that rclone filter globs can only be used in one of the filter command line flags, not in the specification of the remote, so `rclone copy "remote:dir*.jpg" /path/to/dir` won't work - what is required is `rclone --include "*.jpg" copy remote:dir /path/to/dir` ### Directories ### Rclone keeps track of directories that could match any file patterns. Eg if you add the include rule /a/*.jpg Rclone will synthesize the directory include rule /a/ If you put any rules which end in `/` then it will only match directories. Directory matches are **only** used to optimise directory access patterns - you must still match the files that you want to match. Directory matches won't optimise anything on bucket based remotes (eg s3, swift, google compute storage, b2) which don't have a concept of directory. ### Differences between rsync and rclone patterns ### Rclone implements bash style `{a,b,c}` glob matching which rsync doesn't. Rclone always does a wildcard match so `\` must always escape a `\`. ## How the rules are used ## Rclone maintains a combined list of include rules and exclude rules. Each file is matched in order, starting from the top, against the rule in the list until it finds a match. The file is then included or excluded according to the rule type. If the matcher fails to find a match after testing against all the entries in the list then the path is included. For example given the following rules, `+` being include, `-` being exclude, - secret*.jpg + *.jpg + *.png + file2.avi - * This would include * `file1.jpg` * `file3.png` * `file2.avi` This would exclude * `secret17.jpg` * non `*.jpg` and `*.png` A similar process is done on directory entries before recursing into them. This only works on remotes which have a concept of directory (Eg local, google drive, onedrive, amazon drive) and not on bucket based remotes (eg s3, swift, google compute storage, b2). ## Adding filtering rules ## Filtering rules are added with the following command line flags. ### Repeating options ## You can repeat the following options to add more than one rule of that type. * `--include` * `--include-from` * `--exclude` * `--exclude-from` * `--filter` * `--filter-from` * `--filter-from-raw` **Important** You should not use `--include*` together with `--exclude*`. It may produce different results than you expected. In that case try to use: `--filter*`. Note that all the options of the same type are processed together in the order above, regardless of what order they were placed on the command line. So all `--include` options are processed first in the order they appeared on the command line, then all `--include-from` options etc. To mix up the order includes and excludes, the `--filter` flag can be used. ### `--exclude` - Exclude files matching pattern ### Add a single exclude rule with `--exclude`. This flag can be repeated. See above for the order the flags are processed in. Eg `--exclude *.bak` to exclude all bak files from the sync. ### `--exclude-from` - Read exclude patterns from file ### Add exclude rules from a file. This flag can be repeated. See above for the order the flags are processed in. Prepare a file like this `exclude-file.txt` # a sample exclude rule file *.bak file2.jpg Then use as `--exclude-from exclude-file.txt`. This will sync all files except those ending in `bak` and `file2.jpg`. This is useful if you have a lot of rules. ### `--include` - Include files matching pattern ### Add a single include rule with `--include`. This flag can be repeated. See above for the order the flags are processed in. Eg `--include *.{png,jpg}` to include all `png` and `jpg` files in the backup and no others. This adds an implicit `--exclude *` at the very end of the filter list. This means you can mix `--include` and `--include-from` with the other filters (eg `--exclude`) but you must include all the files you want in the include statement. If this doesn't provide enough flexibility then you must use `--filter-from`. ### `--include-from` - Read include patterns from file ### Add include rules from a file. This flag can be repeated. See above for the order the flags are processed in. Prepare a file like this `include-file.txt` # a sample include rule file *.jpg *.png file2.avi Then use as `--include-from include-file.txt`. This will sync all `jpg`, `png` files and `file2.avi`. This is useful if you have a lot of rules. This adds an implicit `--exclude *` at the very end of the filter list. This means you can mix `--include` and `--include-from` with the other filters (eg `--exclude`) but you must include all the files you want in the include statement. If this doesn't provide enough flexibility then you must use `--filter-from`. ### `--filter` - Add a file-filtering rule ### This can be used to add a single include or exclude rule. Include rules start with `+ ` and exclude rules start with `- `. A special rule called `!` can be used to clear the existing rules. This flag can be repeated. See above for the order the flags are processed in. Eg `--filter "- *.bak"` to exclude all bak files from the sync. ### `--filter-from` - Read filtering patterns from a file ### Add include/exclude rules from a file. This flag can be repeated. See above for the order the flags are processed in. Prepare a file like this `filter-file.txt` # a sample filter rule file - secret*.jpg + *.jpg + *.png + file2.avi - /dir/Trash/** + /dir/** # exclude everything else - * Then use as `--filter-from filter-file.txt`. The rules are processed in the order that they are defined. This example will include all `jpg` and `png` files, exclude any files matching `secret*.jpg` and include `file2.avi`. It will also include everything in the directory `dir` at the root of the sync, except `dir/Trash` which it will exclude. Everything else will be excluded from the sync. ### `--files-from` - Read list of source-file names ### This reads a list of file names from the file passed in and **only** these files are transferred. The **filtering rules are ignored** completely if you use this option. `--files-from` expects a list of files as it's input. Leading / trailing whitespace is stripped from the input lines and lines starting with `#` and `;` are ignored. Rclone will traverse the file system if you use `--files-from`, effectively using the files in `--files-from` as a set of filters. Rclone will not error if any of the files are missing. If you use `--no-traverse` as well as `--files-from` then rclone will not traverse the destination file system, it will find each file individually using approximately 1 API call. This can be more efficient for small lists of files. This option can be repeated to read from more than one file. These are read in the order that they are placed on the command line. Paths within the `--files-from` file will be interpreted as starting with the root specified in the command. Leading `/` characters are ignored. See [--files-from-raw](#files-from-raw-read-list-of-source-file-names-without-any-processing) if you need the input to be processed in a raw manner. For example, suppose you had `files-from.txt` with this content: # comment file1.jpg subdir/file2.jpg You could then use it like this: rclone copy --files-from files-from.txt /home/me/pics remote:pics This will transfer these files only (if they exist) /home/me/pics/file1.jpg → remote:pics/file1.jpg /home/me/pics/subdir/file2.jpg → remote:pics/subdir/file2.jpg To take a more complicated example, let's say you had a few files you want to back up regularly with these absolute paths: /home/user1/important /home/user1/dir/file /home/user2/stuff To copy these you'd find a common subdirectory - in this case `/home` and put the remaining files in `files-from.txt` with or without leading `/`, eg user1/important user1/dir/file user2/stuff You could then copy these to a remote like this rclone copy --files-from files-from.txt /home remote:backup The 3 files will arrive in `remote:backup` with the paths as in the `files-from.txt` like this: /home/user1/important → remote:backup/user1/important /home/user1/dir/file → remote:backup/user1/dir/file /home/user2/stuff → remote:backup/user2/stuff You could of course choose `/` as the root too in which case your `files-from.txt` might look like this. /home/user1/important /home/user1/dir/file /home/user2/stuff And you would transfer it like this rclone copy --files-from files-from.txt / remote:backup In this case there will be an extra `home` directory on the remote: /home/user1/important → remote:backup/home/user1/important /home/user1/dir/file → remote:backup/home/user1/dir/file /home/user2/stuff → remote:backup/home/user2/stuff ### `--files-from-raw` - Read list of source-file names without any processing ### This option is same as `--files-from` with the only difference being that the input is read in a raw manner. This means that lines with leading/trailing whitespace and lines starting with `;` or `#` are read without any processing. [rclone lsf](/commands/rclone_lsf/) has a compatible format that can be used to export file lists from remotes, which can then be used as an input to `--files-from-raw`. ### `--min-size` - Don't transfer any file smaller than this ### This option controls the minimum size file which will be transferred. This defaults to `kBytes` but a suffix of `k`, `M`, or `G` can be used. For example `--min-size 50k` means no files smaller than 50kByte will be transferred. ### `--max-size` - Don't transfer any file larger than this ### This option controls the maximum size file which will be transferred. This defaults to `kBytes` but a suffix of `k`, `M`, or `G` can be used. For example `--max-size 1G` means no files larger than 1GByte will be transferred. ### `--max-age` - Don't transfer any file older than this ### This option controls the maximum age of files to transfer. Give in seconds or with a suffix of: * `ms` - Milliseconds * `s` - Seconds * `m` - Minutes * `h` - Hours * `d` - Days * `w` - Weeks * `M` - Months * `y` - Years For example `--max-age 2d` means no files older than 2 days will be transferred. This can also be an absolute time in one of these formats - RFC3339 - eg "2006-01-02T15:04:05Z07:00" - ISO8601 Date and time, local timezone - "2006-01-02T15:04:05" - ISO8601 Date and time, local timezone - "2006-01-02 15:04:05" - ISO8601 Date - "2006-01-02" (YYYY-MM-DD) ### `--min-age` - Don't transfer any file younger than this ### This option controls the minimum age of files to transfer. Give in seconds or with a suffix (see `--max-age` for list of suffixes) For example `--min-age 2d` means no files younger than 2 days will be transferred. ### `--delete-excluded` - Delete files on dest excluded from sync ### **Important** this flag is dangerous - use with `--dry-run` and `-v` first. When doing `rclone sync` this will delete any files which are excluded from the sync on the destination. If for example you did a sync from `A` to `B` without the `--min-size 50k` flag rclone sync A: B: Then you repeated it like this with the `--delete-excluded` rclone --min-size 50k --delete-excluded sync A: B: This would delete all files on `B` which are less than 50 kBytes as these are now excluded from the sync. Always test first with `--dry-run` and `-v` before using this flag. ### `--dump filters` - dump the filters to the output ### This dumps the defined filters to the output as regular expressions. Useful for debugging. ### `--ignore-case` - make searches case insensitive ### Normally filter patterns are case sensitive. If this flag is supplied then filter patterns become case insensitive. Normally a `--include "file.txt"` will not match a file called `FILE.txt`. However if you use the `--ignore-case` flag then `--include "file.txt"` this will match a file called `FILE.txt`. ## Quoting shell metacharacters ## The examples above may not work verbatim in your shell as they have shell metacharacters in them (eg `*`), and may require quoting. Eg linux, OSX * `--include \*.jpg` * `--include '*.jpg'` * `--include='*.jpg'` In Windows the expansion is done by the command not the shell so this should work fine * `--include *.jpg` ## Exclude directory based on a file ## It is possible to exclude a directory based on a file, which is present in this directory. Filename should be specified using the `--exclude-if-present` flag. This flag has a priority over the other filtering flags. Imagine, you have the following directory structure: dir1/file1 dir1/dir2/file2 dir1/dir2/dir3/file3 dir1/dir2/dir3/.ignore You can exclude `dir3` from sync by running the following command: rclone sync --exclude-if-present .ignore dir1 remote:backup Currently only one filename is supported, i.e. `--exclude-if-present` should not be used multiple times.