eol unix to windows in command line .bat batch - command-line

Question

I am trying to convert text file eol to windows format from unix on windows xp machine using command line (batch file). how do I do that? what is the command for that? thanks.

Answer 1

This simple script is fast and works great except it converts every TAB character into 8 spaces. The number of spaces can be modified with the MORE /T option, but there is no way to preserve the TAB characters. Pass the file name (optionally with path) as the one and only argument.
#echo off
more %1 >%1.new
move /y %1.new %1 >nul
All that is needed is to read and echo each line. The FOR /F command is perfect, except it ignores empty lines. Here I use FINDSTR to prefix each line with the line number, followed by a :, thus preserving empty lines. Then I use search and replace to remove the number prefix. I must toggle delayed expansion on and off within the loop to preserve any ! that may appear. This script preserves TABs, but is limited to ~8191 bytes per line. It is also relatively slow. It will become very slow with very large files.
#echo off
setlocal disableDelayedExpansion
>%1.new (
for /f "delims=" %%A in ('findstr /n "^" %1') do (
set "ln=%%A"
setlocal enableDelayedExpansion
echo(!ln:*:=!
endlocal
)
)
move /y %1.new %1 >nul
Finally, here is a hybrid batch/JScript solution that is very fast, and does not have any limitations that I am aware of.
#if (#X)==(#Y) #end /* Harmless hybrid line that begins a JScript comment
::************ Batch portion ***********
#echo off
<%1 cscript //E:JScript //nologo "%~f0" >%1.new
move /y %1.new %1 >nul
exit /b
************* JScript portion **********/
while (!WScript.StdIn.AtEndOfStream) {
WScript.Stdout.WriteLine(WScript.StdIn.ReadLine());
}