node-install does not install node( #22

pi@rpi:~ $ sudo node-install -v 12;
;
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+++. .++' ';;;;;;;;'' +++ +++ '++. '' .+++
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+++. .++' ''';;;;;;;; '++++'+++++ :+++++,
: , '';;;, ,+++; ''++'.
#+''#';+''+'
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:'@'''@'''''+
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Select from list to install specific version of Node 12.X.X:

1. 12.5.0
2. 12.4.0
3. 12.3.1
4. 12.3.0
5. 12.2.0
6. 12.1.0
7. 12.0.0
   Selection: 1
   Creating, and Changing into directory:/tempNode-12.5.0
   Downloading: https://nodejs.org/dist/v12.5.0/node-v12.5.0-linux-armv6l.tar.gz
   Extracting: node-v12.5.0-linux-armv6l.tar.gz
   Installation is Complete.
   pi@rpi:~ $ nodejs -v
   -bash: nodejs: command not found

why it does not work (