Splitting String by N Characters for Batch-file

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This sample script is for splitting string by N characters for batch-file. In this sample, after it retrieves N characters from the first character of STR, the N characters are removed from STR. This is repeated until the end of STR.

Sample script :

@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
SET "STR=ABCDEFGHIJKLMNOPQRSTUVWXYZ"

REM Split STR by N characters
SET "N=2"

:LOOP
SET "RES=%RES%!STR:~0,%N%! "
SET "STR=!STR:~%N%!"
IF DEFINED STR GOTO LOOP
ECHO "%RES:~0,-1%"

Result :

  • N=2
"AB CD EF GH IJ KL MN OP QR ST UV WX YZ"
  • N=5
"ABCDE FGHIJ KLMNO PQRST UVWXY Z"

Reference :

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