Add ln

src/ln.c

@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <unistd.h>
+
+/* TODO -s flag */
+
+int
+main(int argc, char *argv[])
+{
+  if(argc == 1)
+    {
+      printf("Usage: ln oldfile newfile\n");
+      return 1;
+    }
+  int fd = link(argv[1],argv[2]);
+  if(fd == -1)
+    {
+      fprintf(stderr,"Error creating link\n");
+      return 1;
+    }
+  return 0;
+}