Marriage questions Batch Compilation commands

/usr/bin/gcc -DEVAL -std=gnu11 -O2 -pipe -static -s -o marriage marriage.c -lm

/usr/bin/g++ -DEVAL -std=gnu++20 -O2 -pipe -static -s -o marriage marriage.cpp

/usr/bin/g++ -DEVAL -std=gnu++17 -O2 -pipe -static -s -o marriage marriage.cpp

/usr/bin/javac -encoding UTF-8 marriage.java
/bin/sh -c echo "Main-Class: marriage" > __manifest__.txt
/bin/sh -c jar cfm marriage.jar __manifest__.txt *.class

/usr/bin/pypy3 -m compileall -b marriage.py
/bin/mv marriage.pyc __main__.pyc
/usr/bin/zip marriage.pyz.zip __main__.pyc
/bin/mv marriage.pyz.zip marriage.pyz