Writing scripts for UNIX-like operating systems

[FlatAssembler]

I have modified the shell script to compile Analog Clock for x86, so that it might be able to run on Windows. Here is what it looks like now:

Code:

mkdir ArithmeticExpressionCompiler
cd ArithmeticExpressionCompiler
if [ $(command -v wget > /dev/null 2>&1 ; echo $?) -eq 0 ] # Check if "wget" exists, see those StackOverflow answers for more details:
                                                                                         # https://stackoverflow.com/a/75103891/8902065
                                                                                         # https://stackoverflow.com/a/75103209/8902065
then
  wget https://flatassembler.github.io/Duktape.zip
else
  curl -o Duktape.zip https://flatassembler.github.io/Duktape.zip
fi
unzip Duktape.zip
if [ $(command -v clang > /dev/null 2>&1 ; echo $?) -eq 0 ] # We prefer "clang" to "gcc" because... what if somebody tries to run this in CygWin terminal? GCC will not work then, CLANG might.
then
  c_compiler="clang"
else
  c_compiler="gcc"
fi
$c_compiler -o aec aec.c duktape.c -lm # The linker that comes with recent versions of Debian Linux insists that "-lm" is put AFTER the source files, or else it outputs some confusing error message.
if [ "$OS" = "Windows_NT" ]
then
  ./aec analogClockForWindows.aec
  $c_compiler -o analogClockForWindows analogClockForWindows.s -m32
  ./analogClockForWindows
else
  ./aec analogClock.aec
  $c_compiler -o analogClock analogClock.s -m32
  ./analogClock
fi