[Cin] Can't get Cin installed

[Douglas Pollard]

Hello Phyllis, I had been running Mint and had cin Installed. Switched 
to Ubuntu Studio douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ 
Sudo https://cinelerra-gg.org/download/pkgs/mint19 bionic main

Command 'Sudo' not found, did you mean:

   command 'ludo' from snap ludo (0.11.0)
   command 'udo' from deb udo (6.4.1-4)
   command 'sudo' from deb sudo (1.8.27-1ubuntu4.1)
   command 'sudo' from deb sudo-ldap (1.8.27-1ubuntu4.1)

See 'snap info <snapname>' for additional versions.

douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ sudo deb 
[trusted=yes] https://cinelerra-gg.org/download/pkgs/mint19 bionic main
[sudo] password for douglas:
sudo: deb: command not found
douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ deb [trusted=yes] 
https://cinelerra-gg.org/download/pkgs/mint19 bionic main

Command 'deb' not found, did you mean:

   command 'dub' from snap dub (1.19.0)
   command 'den' from snap den (1.2.0-0)
   command 'dep' from deb go-dep (0.5.4-2)
   command 'dex' from deb dex (0.8.0-2)
   command 'debi' from deb devscripts (2.19.6ubuntu1)
   command 'dab' from deb bsdgames (2.17-28)
   command 'debc' from deb devscripts (2.19.6ubuntu1)
   command 'deb3' from deb quilt (0.65-3)
   command 'edb' from deb edb-debugger (1.0.0-1build2)
   command 'dub' from deb dub (1.16.0-1build1)
   command 'derb' from deb icu-devtools (63.2-2ubuntu0.1)
   command 'xdeb' from deb xdeb (0.6.7)

See 'snap info <snapname>' for additional versions.

douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ 
https://cinelerra-gg.org/download/pkgs/mint19 bionic main
bash: https://cinelerra-gg.org/download/pkgs/mint19: No such file or 
directory
douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ apt update
Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: 
Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches 
(13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - 
RemoveCaches (13: Permission denied)
douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ apt install cin
E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: 
Permission denied)
E: Unable to acquire the dpkg frontend lock 
(/var/lib/dpkg/lock-frontend), are you root?
douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$ sudo apt install cin
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package cin
douglas at douglas-HP-Pavilion-Gaming-Desktop-690-00xx:~$

I have had a struggle getting Cinelerra GG installed before. I guess I 
just don't understand this process .

        Thanks for any help that will help  me get cin installed,   Douglas