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why does help for copy mention /B so much in parameters? Let's say I create a file , with an 1A(EOF) character in there. I can view it with the more command. C:\Users\User>echo 616263 | xxd -r -p >c:\crp\a.a C:\Users\User>type c:\crp\a.a abc C:\Users\User>echo 6162631A646566 | xxd -r -p >c:\crp\a.a ...

Fun fact: In the German help text you will not even find someting like "old behavior". For that reason I really don't know what the English help message is talking about. Also, there is no hint that option /S means something like "new behavior". Not even in the English message. It will likely chang...

Admittedly I never got the point of option /s. Wondering if we already have a thread about that somewhere. The point of /S is if you want the "old behaviour" (cmd /? mentions "old behavior"). So it forces old behaviour. or to put it another way, it forcibly skips the "new behaviour". So for example...

So cmd /? mentions 1. If all of the following conditions are met, then quote characters on the command line are preserved: - no /S switch - exactly two quote characters - no special characters between the two quote characters, where special is one of: &<>()@^| - there are one or more whitespace char...

ok thanks.. so cmd /? shows 1. If all of the following conditions are met, then quote characters on the command line are preserved: - no /S switch - exactly two quote characters - no special characters between the two quote characters, where special is one of: &<>()@^| - there are one or more whites...

This, in CMD just running an executable, works C:\blah>"C:\Program Files\Windows NT\Accessories\zordpad.exe" '"C:\Program Files\Windows NT\Accessories\zordpad.exe"' is not recognized as an internal or external command, operable program or batch file. Here, cmd /c gives a broken error message when a ...

ok thanks so How would you explain this C:\Users\User>echo ab^"c | find """ FIND: Parameter format not correct C:\Users\User>echo ab^"c | find """" ab"c C:\Users\User>where grep c:\cygwin\bin\grep.exe C:\Users\User>echo ab^"c | grep """ ab"c C:\Users\User>echo ab^"c | grep """" ab"c C:\Users\User>

I would have thought that of these quotes C:\>echo "zzz^"abc^"" "zzz^"abc"" C:\> echo "zzz^"abc^"" quotes 1,2,3,4 1- the quote before the zzz 2- between the zzz and the abc there is a ^" So the quote there. 3- after the abc there is ^" , the quote there. 4- There is a quote at the end The first one ...

Thanks.. I see that C:\carp>.\wordpad.exe <ENTER> gives that error. whereas this works C:\Program Files\Windows NT\Accessories>.\wordpad<ENTER> So that might rule out PATH and whether a filename is passed as a parameter, which helps in figuring this out. As for your theory re DLLS.. and possibly.. o...

Why do you expect WordPad.exe is running if you copy it to the current directory? It won't! And since searching is performed in the current directory before searching in the PATH directories, you'll always get this message... Look at what I showed you there. It did. And i'd expect it to When that w...

how can one explain this problem of from the command line, getting wordpad to open a text file? Note that it works in one case but not another case, as I indicate. Windows 7, administrative command prompt. C:\>dir c:\carp\a.txt Volume in drive C has no label. Volume Serial Number is 4645-5DCE Direct...

doh!

Thanks!

been a while since I used batch files, I tend to use them very rarely and don't tend to remember some of the idiosyncracies and I try some tests to figure them out but this simple one has me stuck. why doesn't this setting and displaying environment variable work? C:\blah>type testenvv.bat set %%ppp...

how do I rename *.3gp.mp4 to *.mp4?

so e.g. aaa.3gp.mp4 should be aaa.mp4

E:\blah>rename *.3gp.mp4 *.mp4

E:\blah>move *.3gp.mp4 *.mp4
The filename, directory name, or volume label syntax is incorrect.

E:\blah>

none of those commands are renaming the files.

@sst, thanks, you're spot on, I hadn't realised that the round brackets / parentheses , when occurring in a parameter, don't group things! (is that right?) You solved it though. I like both those solutions, the quotes one, and the escaping the ampersand one. you explained that very well with how the...