fastdu

parallel, cross-platform implementation of du

Summary

fastdu is a Rust implementation of GNU du, supporting most options and with the following additions:

1. Ability to sort output in ascending (-S) or descending (-r) order and take the first N entries (eg -n 100).
2. Display of progress and average speed while the filesystem is being scanned (can be disabled with --no-progress).
3. Parallel execution of filesystem operations using Rayon, with an adjustible thread count (eg -j 10).
4. Windows support, including efficient retrieval of file metadata using DirEntry::metadata.

Installation

1. Install rustup
2. cargo install --git https://github.com/jesseschalken/fastdu
3. fastdu -rha -n10 .

Usage

Usage: fastdu [OPTIONS] [FILES_OR_DIRECTORIES]...

Arguments:
  [FILES_OR_DIRECTORIES]...  Files or directories to scan

Options:
  -A, --apparent-size              Print apparent sizes rather than device usage. This is always true on Windows.
  -D, --dereference-args           Dereference only symlinks that are listed on the command line [aliases: -H]
  -L, --dereference                Dereference all symbolic links
  -b, --bytes                      Print size in bytes
      --blocks                     Print size in 512 byte blocks. This is the default.
  -h, --human-readable             Print sizes in human readable format (KiB, MiB etc)
  -S, --sort                       Sort output (ascending order)
      --si                         Like -h, but use powers of 1000 (KB, MB etc) instead of 1024
      --inodes                     Count inodes instead of size
  -l, --count-links                Count sizes many times if hard linked. No effect on Windows.
  -a, --all                        Write counts for all files, not just directories
  -x, --one-file-system            Skip nodes on different file systems. No effect on Windows.
  -n, --limit <N>                  Show only first N results (after sorting)
  -?, --help                       Print help
  -r, --reverse                    Sort output (descending order)
  -j, --num-threads <NUM_THREADS>  Thread count, defaults to 2x the number of CPU cores
      --no-progress                Disable progress output even if stderr is a terminal
      --du-compatible              Show output in the same format as "du". See also --no-progress.
  -0, --null                       End each line with a null byte instead of newline
  -d, --max-depth <MAX_DEPTH>      Only show entries up to this maximum depth
  -s, --summarize                  Same as --max-depth=0
  -c, --total                      Include a grand total