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when I want to execute the binary file or shell scripts ,I got this prompt : -bash : ./test : Permission denied and I am sure I've changed the file's permission : chmod u+x test
There's already a program called test (/usr/bin/test). Depending on the place of the 'new' test program and the path setting, you might try to start the 'real' test program.
Quite strange... only advice I can give is to check that:
1) you are not on a filesystem mounted with -noexec flag
2) try a "ls -l test" to check you actually have the appropriate permissions
3) on non-native fs (like vfat) execution permissions are set filesystem-wide
4) if the file has "set-uid" enabled, maybe this is disabled for your user or fs for securty reason
5) if a script uses the #! tag (e.g. #!/bin/perl) you may have used a wrong executable path
The file I want to execute is on a non-native fs ,yes, I had better to have a look at the permission .
and to druuan : I have all ready try other programs and got the same answer.
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