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# dir: directory utilities
Name | Type | Description
dir | verb | directory listings
dircompare | verb | compare files in directories
dirfind | verb | find name in directory
dirpath | verb | directory paths
dirs | verb | browse files in directory
dirss | verb | directory string search
dirssrplc | verb | directory string search and replace
dirtree | verb | get filenames in directory tree
dirused | verb | get count and space of files in directory tree
dir
    directory listings

    y. = dos file specification:
         if empty, defaults to *

    x. is optional:
       - if not given, defaults to 'n'
       - if character, returns a formatted directory,
           where x. is the sort option:
             d=by date
             n=by name
             s=by size
       - if numeric, there are 1 or 2 elements:
             0{  0= list short names
                 1= boxed list of full pathnames
                 2= full directory list
             1{  0= filenames only (default)
                 1= include subdirectories

    subdirectories are shown first
    filenames are returned in lower case

    e.g.  dir ''
          1 dir jpath '~system\main\d*.ijs'
dircompare
    compare files in directories

    form: [opt] dircompare dirs

      dirs = directory names
      opt is optional, with up to three elements:
        0{  =0 short file comparison (default)
            =1 long file comparison
        1{  =0 given directory only (default)
            =1 recurse through subdirectories
        2{  =0 file contents only (default)
            =1 also compare timestamps

    e.g.  dircompare 'main \jbak\main'

    returns text result or error message
dirfind
    find name in directory
    find name in directory

    form: string dirfind directory

    returns filenames in directory tree containing string

    e.g. 'jfile' dirfind 'packages'
dirpath
    directory paths
    return directory paths starting from y.
    optional x.=0  all paths (default)
                1  non-empty paths (i.e. having files)
    e.g. dirpath 'examples'
dirs
    browse files in directory
    e.g.  dirs jpath '~system\main\*.ijs'
dirss
    directory string search

    form: string dirss directory

    searches for files in directory tree containing string,
    returning formatted display where found.

    e.g. 'create' dirss 'main'

    If x. is a 2-element boxed list, calls dirssrplc
dirssrplc
    directory string search and replace
    form: (old;new) dirssrplc files
    example:
       ('old';'new') dirssrplc jpath '~system\main\*.ijs'
dirtree
    get filenames in directory tree
    return filenames in directory tree as boxed matrix
    optional x. is a timestamp to exclude earlier files
    each row contains:  filename;timestamp;size

    directory search is recursive through subdirectories
    filenames are returned in lower case

    ignores hidden directories

    global DIRTREEX_j_ (set in session configuration)
    is a list of directories to exclude from the search,
    e.g. DIRTREEX_j_=: <'CVS' to exclude cvs directories.

    e.g.  dirtree ''
          dirtree 'main'
          dirtree jpath '~system\packages\*.ijs'
    2004 5 23 dirtree ''   - files dated on or after date.
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