Standard input is empty

total 48
drwxr-xr-x   2 root root 4096 Jul 21  2015 bin
drwxr-xr-x   4 root root 4096 Jul 21  2015 dev
drwxr-xr-x  69 root root 4096 Jul 22  2015 etc
drwxr-xr-x   3 root root 4096 May 14 02:15 home
drwxr-xr-x  10 root root 4096 Jul 21  2015 lib
drwxr-xr-x   2 root root 4096 Jul 21  2015 opt
dr-xr-xr-x 175 root root    0 Mar 28 19:21 proc
drwx------   3 root root 4096 Jul 21  2015 root
drwxr-xr-x   2 root root 4096 Jul 21  2015 sbin
drwxr-xr-x   2 root root 4096 Jul 21  2015 sys
drwxr-xr-t   5 root root 4096 May 14 02:15 tmp
drwxr-xr-x  10 root root 4096 Nov  9  2015 usr
drwxr-xr-x   7 root root 4096 Jul 22  2015 var