Oleksandr Gavenko schrieb am 08.06.2010 um 16:47 (+0300):
> $ touch my.exe
> $ touch some-file
> $ cp some-file my
> cp: cannot create regular file `my': File exists
> $ cp -f some-file my
> cp: cannot create regular file `my': File exists
>
> Same happen ever in cmd.exe so this is not 'bash' fault.
Here's a test script for further amusement. Bottom line is that cp and
shell redirection do quite some unexpected and uncalled-for clobbering.
That should probably be fixed.
\,,,/
(o o)
------oOOo-(_)-oOOo------
#!/bin/bash --verbose
dirname=/tmp/tt$(date +%s)
mkdir $dirname && cd $dirname || exit $?
touch eins.exe # create eins.exe
ls -l
echo 1 > eins # clobbers eins.exe
ls -l
echo 22 > zwei # create zwei
cp zwei eins # refuses to create file (the OP's report)
ls -l
mv eins.exe eins # rename eins.exe to eins
cp zwei eins # overwrites eins as expected
ls -l
rm eins # delete eins
echo 1 > eins.exe # recreate eins.exe
ls -l
mv zwei eins # creates eins, does not clobber eins.exe
ls -l
mv eins zwei # rename it back to zwei
echo 222 > ../zwei.exe # create file with extension
cp ../zwei.exe . # clobbers file without exe extension
ls -l
echo 2222 > zwei # clobbers file with exe extension
ls -l
cp ../zwei.exe zwei # refuses to create file
ls -l
mv ../zwei.exe zwei # creates zwei, does not clobber zwei.exe
ls -l
cp ../zwei . # clobbers file with exe extension
ls -l
-------------------------
As for the general question, Windows and UNIX are very different, and
Cygwin does a fantastic exe-magic job of bringing the two together, a
great treat for those who want to, or have to, use both systems.
Thanks for that!
--
Michael Ludwig
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