Initial Upload

screen.c

@@ -0,0 +1,24 @@
+#include "types.h"
+#include "user.h"
+
+int main(int argc, char *argv[]) {
+    //int  consoles = 0;
+    int pid;
+    //char* comment = "";
+
+    for (int i = 1; i < argc; i++) {
+        if (strcmp(argv[i],  "-c") == 0) {
+            
+        }
+    }
+
+    pid = fork();
+    if (pid < 0) {
+        printf(1, "screen: fork failed\n");
+    }
+    if (pid == 0) {
+        exec("sh", argv);
+        printf(1, "screen: exec sh failed\n");            
+    }    
+    exit();
+}