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copied!<p>The FOR-LOOP generally works, but there are some issues. The FOR doesn't accept empty lines and lines with more than ~8190 are problematic. The expansion works only reliable, if the delayed expansion is disabled.</p> <p>Detection of CR/LF versus single LF seems also a little bit complicated.<br> Also NUL characters are problematic, as a FOR-Loop immediatly cancels the reading.</p> <p><em>Direct</em> binary reading seems therefore nearly impossible.</p> <p>The problem with empty lines can be solved with a trick. Prefix each line with a line number, using the findstr command, and after reading, remove the prefix.</p> <pre><code>@echo off SETLOCAL DisableDelayedExpansion FOR /F "usebackq delims=" %%a in (`"findstr /n ^^ t.txt"`) do ( set "var=%%a" SETLOCAL EnableDelayedExpansion set "var=!var:*:=!" echo(!var! ENDLOCAL ) </code></pre> <p><strong>Toggling between enable and disabled delayed expansion is neccessary</strong> for the safe working with strings, like <code>!</code> or <code>^^^xy!z</code>.<br> That's because the line <code>set "var=%%a"</code> is only safe with <em>DisabledDelayedExpansion</em>, else exclamation marks are removed and the carets are used as (secondary) escape characters and they are removed too.<br> But using the variable <code>var</code> is only safe with <em>EnabledDelayedExpansion</em>, as even a <code>call %%var%%</code> will fail with content like <code>"&"&</code>.</p> <p><strong>EDIT: Added set/p variant</strong><br> There is a second way of reading a file with <code>set /p</code>, the only disadvantages are that it is limited to ~1024 characters per line and it removes control characters at the line end.<br> But the advantage is, you didn't need the delayed toggling and it's easier to store values in variables</p> <pre><code>@echo off setlocal EnableDelayedExpansion set "file=%~1" for /f "delims=" %%n in ('find /c /v "" %file%') do set "len=%%n" set "len=!len:*: =!" <%file% ( for /l %%l in (1 1 !len!) do ( set "line=" set /p "line=" echo(!line! ) ) </code></pre> <p><strong>For reading it "binary" into a hex-representation</strong><br> You could look at <a href="https://stackoverflow.com/a/4648636/463115">SO: converting a binary file to HEX representation using batch file</a></p>

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