Shell Programming and Scripting

#!/bin/bash

Movies='/home/yoda/Videos' 

cd $Movies
 
cvlc ls | sed -n "$((RANDOM%$(ls | wc -l)+1))p"

yoda@ubuntu:~$ ./Movieback 
02 Mine.m4v

yoda@ubuntu:~$ ./Movieback 
VLC media player 1.1.9 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")
[0x879c914] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Blocked: call to setlocale(6, "")
Warning: call to srand(1317472962)
Warning: call to rand()
Blocked: call to setlocale(6, "")

(process:3945): Gtk-WARNING **: Locale not supported by C library.
    Using the fallback 'C' locale.
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdread: Can't stat /home/yoda/Videos/ls
No such file or directory
[0x8af3bcc] filesystem access error: cannot open file /home/yoda/Videos/ls (No such file or directory)
[0x8852174] main input error: open of `file:///home/yoda/Videos/ls
' failed: (null)

$ cvlc $(ls | sed -n "$((RANDOM%$(ls | wc -l)+1))p")