.SH "SYNOPSIS"
-\fBfinddup\fP [OPTION]... [DIR1 [[and:|not:]DIR2]]
+\fBfinddup\fP [OPTION]... [DIR-OR-FILE1 [[and:|not:]DIR-OR-FILE2]]
.SH "DESCRIPTION"
With two directories, it prints either the files common to both DIR1
and DIR2 or, with the `not:' prefix, the ones present in DIR1 and not
in DIR2. The `and:' prefix is assumed by default and necessary only if
-you have a directory name starting with `not:'.
+you have a directory name starting with `not:'. Files are handled like
+directories containing a single file.
This command compares files by first comparing their sizes, hence goes
reasonably fast.
ignore empty files, and ignore files and directories starting with a
dot.
+.B finddup -qtg
+
+.fi
+List all files which are duplicated in the current directory, do not
+show the oldest in each each group of identical ones, and do not show
+group numbers. This is what you could use to list what files to
+remove.
+
.P
.B finddup sources not:/mnt/backup