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diff --git a/FreeFileSync/Build/Help/html/comparison-settings.html b/FreeFileSync/Build/Help/html/comparison-settings.html new file mode 100644 index 00000000..ee34df26 --- /dev/null +++ b/FreeFileSync/Build/Help/html/comparison-settings.html @@ -0,0 +1,98 @@ +<!doctype html> +<html lang="en"> +<head> + <meta charset="utf-8"> + <link rel="stylesheet" type="text/css" href="base.css" > + <title>Comparison Settings</title> +</head> + +<body> + <h1>Comparison Settings</h1> + + <p> + <img src="../images/comparison-settings.png" alt="Comparison settings dialog"><br> + + </p> + + <h2>Symbolic Link Handling</h2> + + <p> + FreeFileSync lets you choose to include symbolic links (also called symlinks or soft links) + when scanning directories rather than skipping over them. When included, you can select between two ways to handle them: + </p> + + <ol> + <li><b>Follow:</b> + Treat symbolic links like the object they are pointing to. Links + pointing to directories are traversed like ordinary directories and + the target of each link is copied during synchronization.<br> + + <li><b>Direct:</b> + Evaluate the symbolic link object + directly. Symbolic links will be shown as separate entities. + Links pointing to directories are not traversed and the link object + is copied directly during synchronization. + </ol> + <br> + + <div class="box-outer"><div class="bluebox"><div class="box-inner"> + <b>Note</b> + <ul style="margin: 0"> + <li>Under Windows the symbolic link options apply to symbolic links, volume mount points and NTFS junction points. + <li>Copying symbolic links requires FreeFileSync to be started with administrator rights. + </ul> + </div></div></div> + <br> + <br> + + <h2>I. Compare by File time and size</h2> + + <p>This variant considers two files with the same name as equal when both modification + time <b>and</b> file size match. The following categories are distinguished:</p> + + <ol style="list-style: upper-roman"> + <li><b>file exists on one side only</b> + <ul> + <li>left only + <li>right only + </ul> + + <li><b>file exists on both sides</b> + <ol style="list-style: lower-roman"> + <li><b>different date</b> + <ul> + <li>left newer + <li>right newer + </ul> + <li><b>same date</b> + <ul> + <li>equal + <li>conflict (same date, different size) + </ul> + </ol> + </ol> + <br> + + <h2>II. Compare by File content</h2> + + <p> + Two files with 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 since a bitwise comparison can be slow. + </p> + + <ol style="list-style: upper-roman"> + <li><b>file exists on one side only</b> + <ul> + <li>left only + <li>right only + </ul> + + <li><b>file exists on both sides</b> + <ul> + <li>equal + <li>different content + </ul> + </ol> +</body> +</html>
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