./brk
/bin/sh: line 21: ./brk: Permission denied
chmod a+x brk
./brk
/bin/sh: line 23: ./brk: Permission denied
chmod a+x brk2 
./brk2
/bin/sh: line 25: ./brk2: Permission denied
uname -a
Linux h5.teamjang.com 2.4.20-43.9.legacysmp #1 SMP Sat Apr 30 19:07:33 EDT 2005 i686 i686 i386 GNU/Linux