Really annoying: sudo, chmod and chown do not help to get those compiled C programs running. In fact Google returns a lot of useless information. Everybody is talking about the wrong usage of IDEs and ubuntu users are wondered if even sudo <compile command> returns “Permission denied”. I want to save my solution for Google. The problem (for me) was the filesystem.
$ vim program.c # write program $ gcc program.c -o program # compile program $ ./program # execute program zsh: permission denied: program $ sudo cat /etc/fstab ... UUID=ab47831-ef /media/fs ext3 defaults,rw,users 0 0 ... $ sudo vim /etc/fstab # change line to... UUID=ab47831-ef /media/fs ext3 defaults,rw,users,exec 0 0 $ gcc program.c -o program $ ./program zsh: permission denied: program $ sudo chmod +x program # add executable flag $ ./program # success
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