X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=finddup.1;h=39731d4759f1d700d9d480718a0c5df2b72230c2;hb=b3918ca80bfbd099271621e526c7cacb837f88b4;hp=334b5868b8c8adc2d18167ac91bec8008b8c4d08;hpb=4b3ca4135c1d7b1f11c0dd0df53624863f1e0688;p=finddup.git

diff --git a/finddup.1 b/finddup.1
index 334b586..39731d4 100644
--- a/finddup.1
+++ b/finddup.1
@@ -10,7 +10,7 @@ finddup \- Find files common to two directories (or not)
 
 .SH "SYNOPSIS"
 
-\fBfinddup\fP [OPTION]... [DIR1 [[and:|not:]DIR2]]
+\fBfinddup\fP [OPTION]... [DIR-OR-FILE1 [[and:|not:]DIR-OR-FILE2]]
 
 .SH "DESCRIPTION"
 
@@ -21,7 +21,8 @@ one as default.
 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.
@@ -94,7 +95,7 @@ file content.
 
 Here are the things I tried, which did not help at all: (1) Computing
 md5s on the whole files, which is not satisfactory because files are
-often not read entirely, hence the md5s can not be properly computed,
+often not read entirely, hence the md5s cannot be properly computed,
 (2) computing XORs of the first 4, 16 and 256 bytes with rejection as
 soon as one does not match, (3) reading files in parts of increasing
 sizes so that rejection could be done with only a small fraction read