[Koha] Installation Failure

[Charles Kelley]

Hello, all

    I am new to both Linux and Koha. I readily admit so. After several
failed attempts to install Debian Linux on VirtualBox for Mac, I finally
succeeded. Now I have trouble in installing Koha on the Debian VirtualBox.
It fails at the first instruction in the Koha-Community instructions.

    When I open terminal and type this instruction

$ wget -q -O- https://debian.koha-community.org/koha/gpg.asc | sudo apt-key
add -

terminal reports

bash: sudo: command not found

    When I type this instruction

$ wget -q -O- http://debian.koha-community.org/koha/gpg.asc | sudo apt-key
add -

terminal reports

base: sudo: command not found

    I have even tried a variant from Joel Hertel's installation guide from
a few years ago, to wit:

$ su
$ wget -q -O- http://debian.koha-community.org/koha/gpg.asc | apt-key add -

    What am I doing wrong?

-- 
    -- Charles.

    Charles Kelley, MLS
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