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Free Open Source:

Swiss File Knife

a command line
multi function tool.

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Rename many files quickly on the command line

through simple expressions
with the free Swiss File Knife for Windows, Mac OS X and Linux.
- download the free Swiss File Knife Base from Sourceforge.
- open the Windows CMD command line, Mac OS X Terminal or Linux shell.
- OS X : type mv sfk-mac-64.exe sfk and chmod +x sfk then ./sfk
- Linux: type mv sfk-linux-64.exe sfk    and chmod +x sfk then ./sfk
  OS X and Linux syntax may differ, check the help within the tool.
sfk rename dirname "/fromtext/totext/" [to outdir]
sfk rename -dir mydir -file .txt -pat "/fromtext/totext/"

flexible multi file rename using rename expressions.

to rename just one file (in scripts) use: sfk renfile

handle with care.
- multi file rename may cause problems in folders which are
  controlled by version control systems like cvs or svn,
  or within workspaces of programs that keep file references,
  like video editing software or IDE's.
- keep backups of original files in case that output
  filenames are unexpected or cause conflicts.

to make things more safe, by default
- sfk rename runs on the given folder only, without sub folders.
  use option -withsub to include sub folders.
- sfk rename runs in simulation mode, previewing changes without
  modifying anything. add option -yes to apply changes.

syntax of /fromtext/totext/

rename expressions are a subset of simple expressions, supporting
an extra symbol '#' within totext. slash patterns are not enabled
by default but require an option -spat. instead of "/" around
/from/to/ any unique char can be used, like in _fromtext_totext_

within /fromtext/ you may use:

   *            for any number of chars (0 or more)
   ?            for exactly one character
   [n chars]    for exactly n characters

within /totext/ you may use:

   [part1]      fill in part  1 extracted from name
   [parts 1,3]  fill in parts 1 and 3
   [parts 1-3]  fill in parts 1 to  3
   #1           fill in part  1, same as [part1]
   #10          fill in part 10
   #            without digits: fill in next part
   #5##         fill in parts 5,6,7

with option -spat only:

   \[           search or fill in the '[' character
   \] \# * \?   same for characters ] # * ?
   \\           search or fill in the backslash '\'

extra parameters
   to outdir    after rename, move the file to folder outdir
                which must be on the same partition.

   -pat x       to specify /from/to/ pattern after
                long -dir ... -file ... parameters
   -spat        enable slash patterns like \xnn
                must be given before or after pattern
   -exact       fromtext must match whole filename,
                not just a part of it.
   -verbose     show part numbers within /from/ text
   -quiet       do not show changed names
   -[no]stat    show statistics or not

accent or umlaut characters in the search pattern
   may have to be rewritten by wildcard "?" to match.

quoted multi line parameters are supported in scripts
   using full trim. type "sfk script" for details.

   sfk rensub   same as "sfk rename -withsub"

beware of Shell Command Characters.
   to find or replace text patterns containing spaces or special
   characters like <>|!&?* you must add quotes "" around parameters
   or the shell environment will destroy your command. for example,
   pattern /foo bar/other/ must be written like "/foo bar/other/"
   within a .bat or .cmd file the percent % must be escaped like %%
   even within quotes: sfk echo -spat "percent %% is a percent \x25"

about example numbers with [brackets]
   if you see [1] type "sfk cmd 1" for whole command in one line.

web reference

more in the SFK Book
   the SFK Book contains a 60 page tutorial, including
   rename examples with input and output filenames.
   type "sfk book" for details.

see also
   sfk xrename  rename files and folder names using
                full SFK Expressions and many patterns.
   sfk renfile  rename just a single file
   sfk rendir   rename just a single folder

examples: short syntax step by step
   sfk rename mydir
      list all files of mydir (nothing is changed)
   sfk ren mydir "/-1540-*.mts/"
      list files in mydir with "-1540-" in their
      filename, followed by any characters, until .mts.
      sfk will show an info text telling about the part
      numbers the search mask (fromtext) is made of.
   sfk ren mydir "/-1540-*.mts/[part1]News[part3]/"
      same as above, but extended to change the wild-
      card part "*" of a match to "News".
   sfk ren mydir "/-1540-*.mts/#News#3/"
      same as above, but shorter to type. "#" without
      a number takes part1, #3 takes part 3.
   sfk ren mydir "/-1540-*.mts/#News#3/" to news
      after rename move the file to folder "news".
      finally add -yes to apply filename changes.

examples: flexible syntax step by step
   sfk rename -dir mydir -file chan
      list files of mydir having "chan" in their name
   sfk ren -dir mydir -file chan -pat "/-1540-*.mts/"
      list chan files in mydir with "-1540-" in their
      filename, followed by any characters, until .mts
   sfk ren -dir mydir -file chan -pat "/-1540-*.mts/#News#3/"
      within filenames of mydir containing parts
      -1540-, then anything, then .mts, like in:
      change the second part "*" into "News":

further examples
   sfk rename . /.mts/.mpg/
      change all .mts to .mpg in current folder
   sfk rename mydir -spat "/\xE4/ae/"
      change special character with code 0xE4 to ae.
      use sfk xrename to supply many of such patterns.
   sfk ren -dir mydir -file .txt -pat "/foo/bar/"
      replace foo by bar in all .txt filenames within mydir
   sfk ren -dir mydir -file "*-????2015-"
    -pat "/-[2 chars][2 chars][4 chars]-[4 chars]-*.
    /-[parts 4,2,3]-[parts 6-9]/"
      in folder mydir change date string in files like: [20]
      to a format with year first:
   sfk ren -dir mydir -file "*-????2015-"
    -pat "/-[2 chars][2 chars][4 chars]-[4 chars]-*.
      same as above, only shorter. #6### means to take
      part 6 and then the three following parts 7,8,9. [21]

sfk is a free open-source tool, running instantly without installation efforts. no DLL's,
no registry changes - just get sfk.exe from the zip package and use it (binaries for
windows, linux and mac are included).

read more about all sfk functions here.

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