fbuf: New data structure for buffered file I/O.

[pspp] / doc / combining.texi

diff --git a/doc/combining.texi b/doc/combining.texi
index a7bca10f5ba6a1d1bd9a382e92706274af4357d3..ad2ed03e3fddfe0929167db1540aa61066174e90 100644 (file)
--- a/doc/combining.texi
+++ b/doc/combining.texi
@@ -1,3 +1,12 @@
+@c PSPP - a program for statistical analysis.
+@c Copyright (C) 2017 Free Software Foundation, Inc.
+@c Permission is granted to copy, distribute and/or modify this document
+@c under the terms of the GNU Free Documentation License, Version 1.3
+@c or any later version published by the Free Software Foundation;
+@c with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
+@c A copy of the license is included in the section entitled "GNU
+@c Free Documentation License".
+@c
 @node Combining Data Files
 @chapter Combining Data Files
 
@@ -61,7 +70,7 @@ following sections describe details specific to each command.
 Each of these commands reads two or more input files and combines them.  
 The command's output becomes the new active dataset.
 None of the commands actually change the input files.
-Therefore, if you want the changes to become permanant, you must explictly
+Therefore, if you want the changes to become permanent, you must explicitly
 save them using an appropriate procedure or transformation (@pxref{System and Portable File IO}).
 
 The syntax of each command begins with a specification of the files to
@@ -170,6 +179,9 @@ only in files that are not present for the current case are set to the
 system-missing value for numeric variables or spaces for string
 variables.
 
+These commands may combine any number of files, limited only by the
+machine's memory.
+
 @node ADD FILES
 @section ADD FILES
 @vindex ADD FILES