On 03/25/2016 09:44 PM, William Hermans wrote:
ooops forgot to add this.
william@beaglebone:~/ramfs$ which test
william@beaglebone:~/ramfs$ sudo su
root@beaglebone:/home/william/ramfs# which test
root@beaglebone:/home/william/ramfs# exit
exit*
*
On Fri, Mar 25, 2016 at 6:42 PM, William Hermans <[email protected]
<mailto:[email protected]>> wrote:
william@beaglebone:~/ramfs$ cat test.c
#include<stdio.h>
int main()
{
printf("hello world !\n");
return 0;
}
william@beaglebone:~/ramfs$ gcc test.c -o test
william@beaglebone:~/ramfs$ la -al test
-bash: la: command not found
william@beaglebone:~/ramfs$ ls -al test
-rwxr-xr-x 1 william william 5047 Mar 25 18:31 test
william@beaglebone:~/ramfs$ umask 022
william@beaglebone:~/ramfs$ test
william@beaglebone:~/ramfs$ umask 0137
william@beaglebone:~/ramfs$ test
william@beaglebone:~/ramfs$ ./test
hello world !
william@beaglebone:~/ramfs$ chmod u+x test
william@beaglebone:~/ramfs$ test
william@beaglebone:~/ramfs$ umask 022
william@beaglebone:~/ramfs$ test
william@beaglebone:~/ramfs$ sudo test
sudo: test: command not found
william@beaglebone:~/ramfs$ umask 0137
william@beaglebone:~/ramfs$ sudo test
sudo: test: command not found
william@beaglebone:~/ramfs$ export PATH=$PATH:/home/william/ramfs/
william@beaglebone:~/ramfs$ test
william@beaglebone:~/ramfs$ echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/william/ramfs/
At this point I decided that the executable "test" is a bad choice
for some reason unknown to me.
william@beaglebone:~/ramfs$ mv test.c hello.c
william@beaglebone:~/ramfs$ rm test
william@beaglebone:~/ramfs$ ls -al
total 8
drwxrwxrwt 2 root root 60 Mar 25 18:36 .
drwxr-xr-x 4 william william 4096 Jan 3 16:16 ..
-rw-r--r-- 1 william william 74 Mar 25 18:26 hello.c
william@beaglebone:~/ramfs$ gcc hello.c -o hello
william@beaglebone:~/ramfs$ hello
-bash: /home/william/ramfs/hello: Permission denied
william@beaglebone:~/ramfs$ chmod +x hello
william@beaglebone:~/ramfs$ hello
-bash: /home/william/ramfs/hello: Permission denied
william@beaglebone:~/ramfs$ sudo hello
sudo: hello: command not found
william@beaglebone:~/ramfs$ ./hello
-bash: ./hello: Permission denied
william@beaglebone:~/ramfs$ chmod u+x hello
william@beaglebone:~/ramfs$ sudo hello
sudo: hello: command not found
oops forgot about umask . .
william@beaglebone:~/ramfs$ umask 022
william@beaglebone:~/ramfs$ sudo hello
sudo: hello: command not found
d'oh, of course this wont work . . . the executable is not in
roots path.
william@beaglebone:~/ramfs$ hello
hello world !
william@beaglebone:~/ramfs$ ./hello
hello world !
william@beaglebone:~/ramfs$
So yes, really weird the executable "test" is not working
correctly on this system, and yes, I ran which test, and in fact . . .
Your not getting the usage of umask at all. It doesn't change
permissions on an existing file..
I'd suggest man umask...
Mike
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