dk-sort

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dk-sort — Sort text line by line

Description

The program sorts input text from the specified files (or from standard input if no file is specified) line by line.
There are some differences to traditional sort programs:

• Different input encodings
  The program can handle different input encodings (i.e. ASCII, UTF-8 for files produced on Linux/Unix systems and UTF-16 for files produced on Windows systems).
  You can use the -i option to specify an expected input encoding. This choice is overwritten if a BOM (byte order marker) is found at start of input data.
   
• Options for numeric sorting
  You can use the options -n, -u, or -f to sort input by leading signed integer, unsigned integer, or floating point numbers at start of lines.

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Examples

Find newest files (last modified)

To find the files last modified:

dk-ls -r -tf -pmtn | dk-sort

Program	Option	Purpose
dk-ls		List files.
	-r	Recursive listing including all subdirectories.
	-tf	Restrict output to files (non-directory items).
	-pmtn	Set print order to: m Modification time t File type n File name
dk-sort		Sort text line by line alphabetically.

Find largest files

To find the largest files in a directory:

dk-ls -r -tf -pstn | dk-sort -u

Program	Option	Purpose
dk-ls		List files.
	-r	Recursive listing including all subdirectories.
	-tf	Restrict output to files (non-directory items).
	-pstn	Set print order to: s File size (number of bytes) t File type n File name
dk-sort		Sort text line by line.
	-u	Sort by unsigned number at start of line.

Group files by file type suffix, sort by size

To list all files, group by file type suffix and sort each group by size:

dk-ls -tf -psn | dk-sort -u -t -s 1

Program	Option	Purpose
dk-ls		List files.
	-tf	Restrict output to files (non-directory items).
	-psn	Set print order to: s File size (number of bytes) n File name
dk-sort		Sort text line by line.
	-u	Sort by unsigned number at start of line.
	-t	Sort by file type suffix.
	-s 1	To find the file type suffix, skip the first text word in each line (the size).

Find largest subdirectory

To find the largest subdirectory:

dk-ls -r -td -pstn | dk-sort -u

Program	Option	Purpose
dk-ls		List files.
	-r	Recursive listing including all subdirectories.
	-td	Restrict output to directories.
	-pstn	Set print order to: s File size (number of bytes) t File type n File name
dk-sort		Sort text line by line.
	-u	Sort by unsigned number at start of line.

Group files by file type suffix, sort by modification time

To list all files, group by file type suffix and sort each group by modification timestamp:

dk-ls -tf -pmn | dk-sort -t -s 2

Program	Option	Purpose
dk-ls		List files.
	-tf	Restrict output to files (non-directory items).
	-pmn	Set print order to: m Modification timestamp n File name
dk-sort		Sort text line by line.
	-t	Sort by file type suffix.
	-s 2	To find the file type suffix, skip the first two text words in each line (modification date and modification timestamp).

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Manual

See the [dk-sort manual] for the full documentation of the program.

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