starting work on chgrp

chgrp.c

@@ -0,0 +1,21 @@
+#define _POSIX_C_SOURCE 200809L
+
+#include <unistd.h>
+
+int main(int argc, char * argv[]) {
+  char c;
+  int recurse = 0; /* -R */
+  /* 0: -P, 01: -L, 02: -H */
+  int recurse_follow = 0;
+  int follow_link = 0; /* -h */
+
+  while((c = getopt(argc, argv, "RHLPh")) != -1) {
+    switch(c) {
+      case 'R': recurse = 1; break;
+      case 'P': recurse_follow = 0; break;
+      case 'L': recurse_follow = 01; break;
+      case 'H': recurse_follow = 02; break;
+      case 'h': follow_link = 1; break;
+    }
+  }
+}