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path: root/BUILD/Help/html/ComparisonSettings.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
	<META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=windows-1252">
	<TITLE></TITLE>
	<META NAME="GENERATOR" CONTENT="OpenOffice.org 3.2  (Win32)">
	<META NAME="CREATED" CONTENT="20091206;16574000">
	<META NAME="CHANGED" CONTENT="20110910;15564800">
	<META NAME="Info 1" CONTENT="">
	<META NAME="Info 2" CONTENT="">
	<META NAME="Info 3" CONTENT="">
	<META NAME="Info 4" CONTENT="">
	<STYLE TYPE="text/css">
	<!--
		@page { margin: 2cm }
		P { margin-bottom: 0.21cm }
		H3 { margin-bottom: 0.21cm }
		H3.western { font-family: "Arial", sans-serif }
		H3.cjk { font-family: "MS Mincho" }
		H3.ctl { font-family: "Mangal" }
		A:link { so-language: zxx }
	-->
	</STYLE>
</HEAD>
<BODY LANG="en-US" DIR="LTR">
<H3 CLASS="western"><FONT FACE="Tahoma, sans-serif">Comparison
Settings</FONT></H3>
<P STYLE="margin-bottom: 0cm"><IMG SRC="CmpSettings.png" NAME="Grafik1" ALIGN=BOTTOM  BORDER=0></P>
<H3 CLASS="western" STYLE="page-break-after: avoid"><FONT FACE="Tahoma, sans-serif">I.
Compare by &quot;File time and size&quot;</FONT></H3>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">This
variant evaluates two equally named files as being equal when they
have the same modification time <B>and</B> file size. When the
comparison is started, the following decision tree is processed:</FONT></P>
<OL TYPE=i>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>file
	exists on one side only</B></FONT></P>
	<OL TYPE=i>
		<UL>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
			only</FONT></P>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
			only</FONT></P>
		</UL>
	</OL>
	<LI><P STYLE="margin-bottom: 0cm; font-style: normal"><FONT FACE="Tahoma, sans-serif"><B>file
	exists on both sides</B></FONT></P>
	<OL TYPE=i>
		<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>different
		date</B></FONT></P>
		<UL>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
			newer</FONT></P>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
			newer</FONT></P>
		</UL>
		<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>same
		date</B></FONT></P>
		<UL>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">equal</FONT></P>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">conflict
			(same date, different size)</FONT></P>
		</UL>
	</OL>
</OL>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">This
results into the following categories:</FONT></P>
<UL>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
	only</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
	only</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
	newer</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
	newer</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">equal</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">conflict
	(same date, different size)</FONT></P>
</UL>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<H3 CLASS="western" STYLE="page-break-after: avoid"><FONT FACE="Tahoma, sans-serif">II.
Compare by &quot;File content&quot;</FONT></H3>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">Two
files which have the same name are marked as equal if and only if
they have the same content. This option is more useful for
consistency checks rather than backup operations for reasons of
speed. The file modification time is not taken into account at all.</FONT></P>
<OL TYPE=i>
	<LI VALUE=1><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>file
	exists on one side only</B></FONT></P>
	<OL TYPE=a>
		<UL>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
			only</FONT></P>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
			only</FONT></P>
		</UL>
	</OL>
	<LI><P STYLE="margin-bottom: 0cm; font-style: normal"><FONT FACE="Tahoma, sans-serif"><B>file
	exists on both sides</B></FONT></P>
	<OL TYPE=a>
		<UL>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">equal</FONT></P>
			<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">different
			content</FONT></P>
		</UL>
	</OL>
</OL>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">As a
result the files are separated into the following categories:</FONT></P>
<UL>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">left
	only</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">right
	only</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">equal</FONT></P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">different
	content</FONT></P>
</UL>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<H3 CLASS="western"><FONT FACE="Tahoma, sans-serif">Symbolic link
handling</FONT></H3>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">FreeFileSync
offers three options to configure processing of symbolic links (also
called symlinks or soft links):</FONT></P>
<OL>
	<LI><P STYLE="margin-bottom: 0cm"><SPAN STYLE="text-decoration: none"><FONT FACE="Tahoma, sans-serif"><SPAN STYLE="font-style: normal"><B>Ignore:</B></SPAN></FONT></SPAN>
	<FONT FACE="Tahoma, sans-serif">excludes symbolic links while
	scanning input directories.<BR></FONT>&nbsp;</P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>Direct:</B></FONT>
	<FONT FACE="Tahoma, sans-serif">configures synchronization of the
	symbolic link object itself and not its target. symbolic links will
	be visible on main grid as a separate entity with corresponding meta
	data. Links pointing to directories are not traversed and the link
	object is copied directly during synchronization. <BR></FONT>&nbsp;</P>
	<LI><P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><SPAN STYLE="font-style: normal"><B>Follow:</B></SPAN>
	dereferences symbolic links, i.e. they are treated like their target
	objects. Links pointing to directories are traversed like ordinary
	folders and the target of each link is copied during
	synchronization.</FONT></P>
</OL>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
<P STYLE="margin-left: 1.46cm; margin-bottom: 0cm"><SPAN ID="Rahmen1" DIR="LTR" STYLE="float: left; width: 80%; height: 0.14cm; border: 1px solid #000080; padding: 0.05cm; background: #ccccff">
	<P ALIGN=LEFT STYLE="margin-left: 0.79cm; margin-right: 0.98cm; margin-bottom: 0cm">
	<FONT FACE="Tahoma, sans-serif"><B>Note:</B></FONT></P>
	<UL>
		<LI><P ALIGN=LEFT STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">In
		Windows the options described above always apply to </FONT><FONT FACE="Tahoma, sans-serif"><I>&quot;Reparse
		Points&quot;</I></FONT><FONT FACE="Tahoma, sans-serif">. Reparse
		Points are a more general concept including for example symbolic
		links, junctions and mount points. The term </FONT><FONT FACE="Tahoma, sans-serif"><I>&quot;symbolic
		link&quot; </I></FONT><FONT FACE="Tahoma, sans-serif"><SPAN STYLE="font-style: normal">has
		been retained nevertheless for harmonization with Linux.</SPAN></FONT></P>
		<LI><P ALIGN=LEFT STYLE="margin-bottom: 0cm; font-style: normal"><FONT FACE="Tahoma, sans-serif">Copying
		symbolic links requires the application to be started with
		administrator rights.</FONT></P>
	</UL>
</SPAN><BR CLEAR=LEFT><BR>
</P>
<P STYLE="margin-bottom: 0cm"><BR>
</P>
</BODY>
</HTML>
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