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How to search case insensitive even with accent characters

on the command line with the Swiss File Knife for Windows.
- 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-i686.exe sfk and chmod +x sfk then ./sfk
- Linux: type mv sfk-linux.exe sfk    and chmod +x sfk then ./sfk
  OS X and Linux syntax may differ, check the help within the tool.
SFK The Book - Relaxed Syntax Meditation.
case insensitive search and file selection:

since version 1.9.0 SFK for Windows supports
case insensitive search within the codepage of
your Windows system. for example,

- computers with german or french locale with codepage
  1252 may search german and french text, ignoring case
  for accent and umlaut characters.

- computers with russian locale with codepage 1251
  may search cyrillic text, case insensitive.

but you may not search french text on a russian
locale case insensitive, as codepage 1251 does
not contain the required accent characters.

this means to use case insensitive search you are
limited to search your own language, plus english.

to see what codepage your system uses, type:

   sfk sysinfo

to force codepage 1252 (ISO 8859-1) internally in SFK,
no matter what the actual system codepage is,
use global option -isochars directly after sfk,
or set the environment like:

   SET SFK_CONFIG=isochars

this is recommended when creating script packackes
for distribution that must behave the same on any
computer, regardless of the local codepage.

to see in detail how characters are mapped during
case insensitive search, use global option -tracecase:

   sfk -tracecase filter in.txt -+myword

use -tracecase2 to also show chars which are not mapped
because they are lowercase already, or not a letter.

for the full list of SFK character mappings see:

   sfk listcodes

case search options:
   -case       search case sensitive, a != A
   -nocase     search case insensitive (default),
               a == A and a_accent == A_accent
               depending on your codepage
   -nocasemin  search case insensitive but only
               latin characters a-z (ASCII low codes)
   -deacc      use accent insensitive text search
               and filename selection, i.e.
               a == A == a_accent == A_accent.
               cannot be combined with -case.
               can also be set by environment like:
               SET SFK_CONFIG=deacc

see also
   sfk help chars   about codepages

SFK for Linux can only search latin base characters
from A to Z case insensitive, without any accents.


 
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.

Download the free Depeche View Lite Text Search Tool