user-level programs: mkdir and rm

shell parses arguments (very simplistic)
readme version of README (sh doesn't deal with capital characters)
printf recognizes %c
nicer output format for ls

1 files changed, 22 insertions, 0 deletions

diff --git a/rm.c b/rm.c
new file mode 100644
index 0000000..661e88d
--- /dev/null
+++ b/rm.c
@@ -0,0 +1,22 @@
+#include "types.h"
+#include "stat.h"
+#include "user.h"
+
+main(int argc, char *argv[])
+{
+  int i;
+
+  if(argc < 2){
+    printf(2, "Usage: rm files...\n");
+    exit();
+  }
+
+  for(i = 1; i < argc; i++){
+    if (unlink(argv[i]) < 0) {
+      printf(2, "mkdir: %s failed to create\n", argv[i]);
+      break;
+    }
+  }
+
+  exit();
+}