Flags

Skip

-s

Skip any messages after executing application. Useful for scripting. Will skip confirmation message to create new database file

dfg -s -d /mnt/usb/pictures/

Skip info messages

-e

Only shows errors such as failed hashes and missing files. Does not show any info prompts during the scan.

Note: will also not show a line for new files.

Logging

-l

Add the l flag to output to a log file. Your terminal will no longer show verbose. More on the log file.

-log

Specify the location of the log file. Log entries append to previous log lines (log files do not overwrite).

Example:

dfg -l -log /var/log/pictures.log -d /mnt/usb/pictures/

Block Size

The default block size used to hash files is 64 MB. You can specify a custom block size, in MB.

-b 64

Changing the block size does not affect existing hashes already saved in the database

Skip missing file scan

--skip-missing

Skips the missing file scan. You will not be notified about missing / deleted files which exist in the database.

Check for missing only

m

Runs a missing files only scan. Does not look for new files or checksums existing files. Cannot be used in conjunction with the --skip-missing flag.

dfg -d /path/to/files -m

Read only mode

-ro

Runs a scan without modifying the dfg.db or specified database file. If new files are found, they will not be written to the dfg.db file. Good option for testing archival data.

dfg -d /path/to/file -ro

Debug

-debug

Shows debugging messages. Detailed error messages are printed.

dfg -d /path/to/files/ -debug

Database file location

-db

You can specify your own db location with name of the database file. To do this, use the -db flag, example:

dfg -db /path/to/db.sql -d /path/to/files/

Ensure you specify the database name, not just the directory path.

Version

-version

Outputs version of the application