Ragazi sono riuscito alla fine ad avere javac, ma ho ancora lo stesso problema
root@steve-HP-14-Notebook-PC:~/Scaricati/jdk1.8.0_161/bin# ./javac -scripts/nuovo.java
javac: file not found: -scripts/nuovo.java
Usage: javac <options> <source files>
use -help for a list of possible options
root@steve-HP-14-Notebook-PC:~/Scaricati/jdk1.8.0_161/bin# ./javac -sourcepath scripts/nuovo.java
javac: no source files
Usage: javac <options> <source files>
use -help for a list of possible options
root@steve-HP-14-Notebook-PC:~/Scaricati/jdk1.8.0_161/bin# ./javac "scripts/nuovo.java"
javac: file not found: scripts/nuovo.java
Usage: javac <options> <source files>
use -help for a list of possible options
root@steve-HP-14-Notebook-PC:~/Scaricati/jdk1.8.0_161/bin# ./javac scripts/nuovo.java
javac: file not found: scripts/nuovo.java
Usage: javac <options> <source files>
use -help for a list of possible options