BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso26+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ echo "alias iplayer='iplayer-dl -d /home/user/MyDocs/.videos'" >> /home/user/.profile
-sh: cannot create /home/user/.profile: Permission denied
~ $ cat /home/user/.profile
alias iplayer='iplayer-dl -d /home/user/MyDocs/.videos'
~ $ iplayer http://www.bbc.co.uk/iplayer/episode/b00qb093/Friday_Night_with_Jonathan_Ross_Series_18_Episode_2/
-sh: iplayer-dl: not found
~ $ which iplayer-dl
~ $ cat /home/user/.profile
alias iplayer='iplayer-dl -d /home/user/MyDocs/.videos'
~ $ apt-get install iplayer-dl
E: Could not open lock file /var/lib/dpkg/lock - open (13 Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
~ $ ls -l /usr/bin | grep iplayer
~ $ which iplayer-dl
~ $ #note output...
~ $ 
~ $ sudo gainroot
Root shell enabled


BusyBox v1.10.2 (Debian 3:1.10.2.legal-1osso26+0m5) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/home/user # chown root. /usr/bin/iplayer-dl
chown: /usr/bin/iplayer-dl: No such file or directory
/home/user # which iplayer-dl
/home/user # #note output again