Some accrued fixes/updates.

    * cp/mv now accepts (and ignores) the -f flag, since it always
	does force anyway
    * tail can now accept -<num> commands (e.g. -10) for better
	compatibility with the standard tail command
    * added a simple id implementation; doesn't support supp. groups yet


git-svn-id: svn://busybox.net/trunk/busybox@507 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 4 insertions, 0 deletions

diff --git a/cp_mv.c b/cp_mv.c
index b43a6d31f..ae35bca19 100644
--- a/cp_mv.c
+++ b/cp_mv.c
@@ -56,6 +56,7 @@ static const char *cp_mv_usage[] =	/* .rodata */
                 "\t-a\tSame as -dpR\n"
                 "\t-d\tPreserves links\n"
                 "\t-p\tPreserves file attributes if possible\n"
+                "\t-f\tforce (implied; ignored) - always set\n"
                 "\t-R\tCopies directories recursively\n"
 #endif
                 ,
@@ -218,6 +219,9 @@ extern int cp_mv_main(int argc, char **argv)
                                 case 'R':
                                         recursiveFlag = TRUE;
                                         break;
+                                case 'f':
+                                   /* for compatibility; busybox cp/mv always does force */
+                                        break;
                                 default:
                                         usage(cp_mv_usage[is_cp]);
                                 }