Solved Remove 30 first char of text file

nbrane September 24, 2012 at 19:20:40

✔ Best Answer

@echo off & setlocal set file=source.txt (echo a90 echo sub cx,1e echo int 3 echo. echo g=90 echo w11e echo q ) | debug %file% > nul ::===== end Not sure of the filesize capacity. Here's a "new and improved" alternative vbscript solution (now tested and functional!): '''==== begin vbscript if wscript.arguments.count <2 then wscript.echo "usage: CSCRIPT CLIPFILE.VBS filename no_of_bytes" wscript.echo "output goes to file 'source.out'" wscript.quit end if fname=wscript.arguments(0) noobytes=wscript.arguments(1) set fso=createobject("scripting.filesystemobject") set intext=fso.opentextfile(fname,1) set otext=fso.createtextfile("source.out") j=intext.read(noobytes) j=intext.readall '''this foll. line will try to prevent the CR/LF split if left(j,1)=chr(10) then j=mid(j,2) end if otext.write j wscript.quit '''''==== end vbscript

AlexBurhan September 25, 2012 at 00:38:22

hi NBrane, Many thanks, question : if i want to remove 190 chars, what script need to change? Thanks

Mechanix2Go September 25, 2012 at 01:35:46

:: ===== script starts here =============== :: :: alex.bat 2012-09-25 15:29:18.08 @echo off > newfile & setLocal enableDELAYedeXpansioN set/p N=how many? for /f "tokens=* delims= " %%a in (myfile) do ( set S=%%a set S=!S:~%N%! echo.!S! ) >> newfile goto :eof ::====== script ends here ================= ==================================== Life is too important to be taken seriously. M2

AlexBurhan September 25, 2012 at 02:56:07

Hi M2, I run the script : @echo off > newfile.txt & setLocal enableDELAYedeXpansioN set/p N=190 for /f "tokens=* delims= " %%a in (source.txt) do ( set S=%%a set S=!S:~%N%! echo.!S! ) >> newfile.txt goto :eof but it cut nothing. Please advice. Thanks

Mechanix2Go September 25, 2012 at 03:27:50

When you did this: set/p N=190 what did you respond with? ==================================== Life is too important to be taken seriously. M2

AlexBurhan September 25, 2012 at 03:36:01

Hi M2, It will create a new text file but the file as same contain as source.txt Please advice. thanks

nbrane September 25, 2012 at 20:52:58

for the debug version: :: change following: echo sub cx,be ::next 3 lines are same as original, listng for context only echo int 3 echo. echo g=90 ::then change this line echo w1be for vbscript version, change only this line: j=intext.read(30) to this: j=intext.read(90) or, for adaptability (cscript x.vbs source.txt 90): file=wscript.arguments(0) bytes=wscript.arguments(1) set intext=fso.opentextfile(file,1) ... j=intext.read(bytes) 'end====== refer to modified response #`1 for a better listing with improved handling. NOTE: crlf pairs could become split if the byte-count lands between the CR and the LF!

AlexBurhan October 8, 2012 at 06:38:08

Hi NBrane, I have ran the script ::: change following: echo sub cx,be ::next 3 lines are same as original, listng for context only echo int 3 echo. echo g=90 ::then change this line echo w1be it works on Windows XP Profesional SP 3 but... when I run on our Windows 2008 R2 64 bit, I got this error : 'debug' is not recognized as an internal or external command, operable program or batch file. Please help. Thanks Alex

thebest123456 October 8, 2012 at 07:31:58

Obviously debug isn't recognized as a proper command since it isn't supported, similar to the choice command with win xp(where the solution would be to copy choice.exe).

Mechanix2Go October 9, 2012 at 03:01:22

If you'd answered my question in #5 you might not be in this mess. ==================================== Life is too important to be taken seriously. M2

AlexBurhan October 9, 2012 at 04:37:08

Hi M2, I have answered but maybe my english is not good. I supposed to replied you : I have put N=190, then run the script. it will create a new file call newfile.txt. but the newfile.txt is as same contain as source.txt. (means : the script create new file but not succeed to cut 190char). Please advice. thanks Alex

Mechanix2Go October 10, 2012 at 03:20:47

Hi Alex, You tinkered with the set/p and got it wrong. This one is hard wired for 190. :: ===== script starts here =============== :: :: alex.bat 2012-09-25 15:29:18.08 @echo off > newfile & setLocal enableDELAYedeXpansioN set N=190 for /f "tokens=* delims= " %%a in (myfile) do ( set S=%%a set S=!S:~%N%! echo.!S! ) >> newfile goto :eof ::====== script ends here ================= ==================================== Life is too important to be taken seriously. M2

AlexBurhan October 10, 2012 at 06:36:07

Hi M2, I have modified the script with your last script. Result : it will delete 190 first chars, left 84 chars, then delete the rest text on the file. my original file zise has 112 KB become 3KB. Please advice. thanks