这是我不断得到的：
ascendermedia@magic2tower:~$ sudo apt-get install flashplugin-installer
bash: sudo: command not found
ascendermedia@magic2tower:~$ sudo apt-get install flashplugin-installer
bash: sudo: command not found
ascendermedia@magic2tower:~$ apt-get install flashplugin-installer
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?
ascendermedia@magic2tower:~$ sudo aptitude install flashplugin-nonfree
bash: sudo: command not found
ascendermedia@magic2tower:~$ aptitude install flashplugin-nonfree
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration …