Erica Thompson

README.md

@@ -12,6 +12,9 @@ type `make` in the `examples/` directory.) It should print `Testing: PASS`.
 ## Challenge 1
 
 Name at least three things that an operating system is responsible for handling?
+- Abstracting complexities from the user 
+- Managing resources like processors, memory, data storage and I/O devices.
+- Sharing I/O between programs using CPU.
 
 ## Challenge 2
 

examples/commandline.c

@@ -2,9 +2,12 @@
  * Try running with various command line args:
  *
  * ./commandline hello world
+ // 3 cmdline args
  * ./commandline this is a test
+ // 5 cmdline args
  * ./commandline
- */
+ // 1 cmdline arg
+ */ 
 
 #include <stdio.h>
 

lsls/lsls.c

@@ -7,12 +7,33 @@
 int main(int argc, char **argv)
 {
   // Parse command line
-
+{
+    int count;
+    for (count=0; count<argc; count++)
+        puts (argv[count]);
+}
   // Open directory
 
+  DIR *pDir = opendir (argv[1]);
+  struct dirent *pDirent;
+
+ if (argc < 2) {
+    pDir = opendir(".");
+  }
+  if (pDir == NULL){
+    printf("invalid directory: %s\n", argv[1]);
+    return 1;
+  }
+
   // Repeatly read and print entries
+
+
+  while ((pDirent = readdir(pDir)) != NULL) {
+            printf ("[%s]\n", pDirent->d_name);
+        }
 
   // Close directory
+  closedir (pDir);
 
   return 0;
 }