Working on exercise 3-5 but I'm creating some libraries

libraries/hex_octal_conv/compile.sh

@@ -0,0 +1,13 @@
+if [ ! -d "bin" ]; then
+    mkdir bin
+    echo "created bin directory"
+fi
+
+if [ ! -d "bin/static" ]; then
+    mkdir bin/static
+    echo "created bin/static directory"
+fi
+
+gcc -c src/hex.c -Iinclude -o bin/static/hex.o
+
+ar rcs bin/static/libhexoctalconv.a bin/static/hex.o