# fdup The dumb tool for finding duplicate files by their hash sums. Compile it with `-prod` for better performance: ```console $ v -prod . ``` Look at releases page for prebuilt executables. # Synonsis ``` Usage: fdup [flags] [commands] [DIR...] File duplicates finder Flags: -hash Hashing algorythm: blake3, crc32, fnv1a, sha1, sha256, md5 [default: fnv1a] -threads Number of threads used for calculating hash sums [default: number of CPU cores] -brief Brief output, print plain easy to parse hashes and filenames only. -json Print output in JSON format. -exclude Glob pattern to exclude files and directories [can be passed multiple times] -skip-empty Skip empty files. -max-size Maximum file size in bytes. Files larger than this will be skipped. -remove Remove duplicates. -prompt Prompt before every removal. -help Prints help information. -version Prints version information. Commands: help Prints help information. version Prints version information. ```