+\S{psftp-quoting} General quoting rules for PSFTP commands
+
+Most PSFTP commands are considered by the PSFTP command interpreter
+as a sequence of words, separated by spaces. For example, the
+command \c{ren oldfilename newfilename} splits up into three words:
+\c{ren} (the command name), \c{oldfilename} (the name of the file to
+be renamed), and \c{newfilename} (the new name to give the file).
+
+Sometimes you will need to specify file names that \e{contain}
+spaces. In order to do this, you can surround the file name with
+double quotes. This works equally well for local file names and
+remote file names:
+
+\c psftp> get "spacey file name.txt" "save it under this name.txt"
+
+The double quotes themselves will not appear as part of the file
+names; they are removed by PSFTP and their only effect is to stop
+the spaces inside them from acting as word separators.
+
+If you need to \e{use} a double quote (on some types of remote
+system, such as Unix, you are allowed to use double quotes in file
+names), you can do this by doubling it. This works both inside and
+outside double quotes. For example, this command
+
+\c psftp> ren ""this"" "a file with ""quotes"" in it"
+
+will take a file whose current name is \c{"this"} (with a double
+quote character at the beginning and the end) and rename it to a
+file whose name is \c{a file with "quotes" in it}.
+
+(The one exception to the PSFTP quoting rules is the \c{!} command,
+which passes its command line straight to Windows without splitting
+it up into words at all. See \k{psftp-cmd-pling}.)
+