Usage: diffstat [options] [files]

Reads from one or more input files which contain output from 'diff',
producing a histogram of total lines changed for each file referenced.
If no filename is given on the command line, reads from standard input.

Options:
  -b      ignore lines matching "Binary files XXX and YYY differ"
  -c      prefix each line with comment (#)
  -C      add SGR color escape sequences to highlight the histogram
  -d      debug - prints a lot of information
  -D PATH specify location of patched files, use for unchanged-count
  -e FILE redirect standard error to FILE
  -E      trim escape-sequences, e.g., from colordiff
  -f NUM  format (0=concise, 1=normal, 2=filled, 4=values)
  -h      print this message
  -k      do not merge filenames
  -K      resolve ambiguity of "only" filenames
  -l      list filenames only
  -m      merge insert/delete data in chunks as modified-lines
  -n NUM  specify minimum width for the filenames (default: auto)
  -N NUM  specify maximum width for the filenames (default: auto)
  -o FILE redirect standard output to FILE
  -O      inspect only files listed in diff for -S/-D options
  -p NUM  specify number of pathname-separators to strip (default: common)
  -q      suppress the "0 files changed" message for empty diffs
  -r NUM  specify rounding for histogram (0=none, 1=simple, 2=adjusted)
  -R      assume patch was created with old and new files swapped
  -s      show only the summary line
  -S PATH specify location of original files, use for unchanged-count
  -t      print a table (comma-separated-values) rather than histogram
  -T      print amounts (like -t option) in addition to histogram
  -u      do not sort the input list
  -v      show progress if output is redirected to a file
  -V      prints the version number
  -w NUM  specify maximum width of the output (default: 80)