X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=finddup.c;h=8d6e67af255088462aa88a7a9a548d8e9eba768d;hb=da07c4f78dce0021ed889ea0db818cb55d96ceed;hp=9a6e6be0dec6009d4d012f5b25c0a7efd1dec613;hpb=2eac88f904b6f292a65d909e40e48eae62e3f8ac;p=finddup.git

diff --git a/finddup.c b/finddup.c
index 9a6e6be..8d6e67a 100644
--- a/finddup.c
+++ b/finddup.c
@@ -1,7 +1,8 @@
 
 /*
- *  finddup is a simple utility to display the files and directories
- *  according to their total disk occupancy.
+ *  finddup is a simple utility find duplicated files, files common to
+ *  several directories, or files present in one directory and not in
+ *  another one.
  *
  *  Copyright (c) 2010 Francois Fleuret
  *  Written by Francois Fleuret <francois@fleuret.org>
@@ -221,9 +222,9 @@ void start(const char *dirname1, const char *dirname2) {
   struct file_with_size *node1, *node2;
   int not_in, found;
 
-  if(dirname2[0] == '^') {
+  if(strncmp(dirname2, "not:", 4) == 0) {
     not_in = 1;
-    dirname2++;
+    dirname2 += 4;
   } else {
     not_in = 0;
   }
@@ -272,9 +273,9 @@ void start(const char *dirname1, const char *dirname2) {
 }
 
 void print_help(FILE *out) {
-  fprintf(out, "Usage: finddup [OPTION]... DIR1 [[^]DIR2]\n");
+  fprintf(out, "Usage: finddup [OPTION]... DIR1 [[not:]DIR2]\n");
   fprintf(out, "Version %s (%s)\n", VERSION_NUMBER, UNAME);
-  fprintf(out, "Without DIR2, lists duplicated files in DIR1. With DIR2, list files common to both directories. With DIR2 starting with a ^, list files found in DIR1 which do not exist in DIR2.\n");
+  fprintf(out, "Without DIR2, lists duplicated files found in DIR1. With DIR2, lists files common to both directories. With the not: prefix, lists files found in DIR1 which do not exist in DIR2.\n");
   fprintf(out, "\n");
   fprintf(out, "   -h   show this help.\n");
   fprintf(out, "   -r   show the real file paths.\n");