root@Kublai:~/opt/bin$ lsusb
Bus 004 Device 001: ID 0000:0000
Bus 004 Device 002: ID 03f0:2e17 Hewlett-Packard
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 002 Device 002: ID 04b4:fd13 Cypress Semiconductor Corp.
Bus 001 Device 001: ID 0000:0000
root@Kublai:~/opt/bin$ ls -al
drwxr-xr-x 2 root root 80 Mar 4 20:41 .
drwxr-xr-x 4 root root 80 Mar 2 21:13 ..
-rwxr-xr-x 1 root root 28626 Mar 2 21:13 sispm
-rwxr-xr-x 1 root root 49184 Mar 2 21:03 sispmctl
root@Kublai:~/opt/bin$ sispm
-ash: sispm: Permission denied
root@Kublai:~/opt/bin$ ./sispm
-ash: ./sispm: not found
root@Kublai:~/opt/bin$ ./sispmctl
-ash: ./sispmctl: not found
root@Kublai:~/opt/bin$ sispmctl
-ash: sispmctl: not found