run-asm.sh

#!/bin/bash

#THIS SCRIPT USED FOR 1) ASSEMBLE CODE 
#                     2) LINK 
#                     3) RUN THE BINARY
#                     4) PRINT THE OUTPUT
#SCRIPT WORKS WITH X86_ASSEMBLY AT&T SYNTAX

options=("asm" "link" "asm-link" "all")

option=$2
if [[ ! ${options[*]} =~ "$option" ]]; then
    echo "Please enter valid option: asm | link | asm-link | all"
    exit
fi

file_arg=$1
path_file=""
file_name=""

if [ -n "$file_arg" ]; then
    path_file=${file_arg::-2}           # remove extension .s if exits
    file_name=$(basename ${path_file})  # get file name without path
else
    echo "Please enter the assembly file as an argument"
    exit 1
fi

if [ ! -d out ]
then
    mkdir out
fi

if [[ $option == "asm" ]]; then
    echo "assembling..."
    as --32 -g -I $(pwd) $path_file.s -o out/$file_name.o
    echo "done"

elif [[ $option == "link" ]]; then
    echo "linking..."
    ld -melf_i386 out/$file_name.o -o out/$file_name
    echo "done"

elif [[ $option == "asm-link" ]]; then
    echo "assembling-linking..."
    as --32 -g -I $(pwd) $path_file.s -o out/$file_name.o && ld -melf_i386 out/$file_name.o -o out/$file_name 
    echo "done"

elif [[ $option == "all" ]]; then
    as --32 -g -I $(pwd) $path_file.s -o out/$file_name.o && ld -melf_i386 out/$file_name.o -o out/$file_name && ./out/$file_name "${*:2}"; echo $?
fi

# END