X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Futilities.texi;h=ea1cfbb2c8c9c1ea7c213046d1e4b5fd134fb018;hb=db6866ae0bd3b83962db50cd3b2658246ebd06d3;hp=db7daa36093e016f73c5ac2309530650e536d15f;hpb=1fc3af93c0ba6cbaf7ef09edc979096b6f16dd6f;p=pspp

diff --git a/doc/utilities.texi b/doc/utilities.texi
index db7daa3609..ea1cfbb2c8 100644
--- a/doc/utilities.texi
+++ b/doc/utilities.texi
@@ -14,12 +14,14 @@ encountered in the input.
 * DISPLAY DOCUMENTS::           Display active file documents.
 * DISPLAY FILE LABEL::          Display the active file label.
 * DROP DOCUMENTS::              Remove documents from the active file.
+* ECHO::                        Write a string to the output stream.
 * ERASE::                       Erase a file.
 * EXECUTE::                     Execute pending transformations.
 * FILE LABEL::                  Set the active file's label.
 * FINISH::                      Terminate the PSPP session.
 * HOST::                        Temporarily return to the operating system.
 * INCLUDE::                     Include a file within the current one.
+* PERMISSIONS::                 Change permissions on a file.
 * QUIT::                        Terminate the PSPP session.
 * SET::                         Adjust PSPP runtime parameters.
 * SHOW::                        Display runtime parameters.
@@ -87,7 +89,7 @@ DISPLAY FILE LABEL.
 active file,
 if any.  @xref{FILE LABEL}.
 
-@node DROP DOCUMENTS, ERASE, DISPLAY FILE LABEL, Utilities
+@node DROP DOCUMENTS, ECHO, DISPLAY FILE LABEL, Utilities
 @section DROP DOCUMENTS
 @vindex DROP DOCUMENTS
 
@@ -101,8 +103,17 @@ New documents can be added with @cmd{DOCUMENT} (@pxref{DOCUMENT}).
 @cmd{DROP DOCUMENTS} changes only the active file.  It does not modify any
 system files stored on disk.
 
+@node ECHO, ERASE, DROP DOCUMENTS, Utilities
+@section ECHO
+@vindex ECHO
 
-@node ERASE, EXECUTE, DROP DOCUMENTS, Utilities
+@display 
+ECHO 'arbitrary text' .
+@end display
+
+Use @cmd{ECHO} to write arbitrary text to the output stream. The text should be enclosed in quotation marks following the normal rules for string tokens (@pxref{Tokens}).
+
+@node ERASE, EXECUTE, ECHO, Utilities
 @comment  node-name,  next,  previous,  up
 @section ERASE
 @vindex ERASE
@@ -169,7 +180,7 @@ to the operating system.
 This command cannot be used if the SAFER setting is active.
 
 
-@node INCLUDE, QUIT, HOST, Utilities
+@node INCLUDE, PERMISSIONS, HOST, Utilities
 @section INCLUDE
 @vindex INCLUDE
 @vindex @@
@@ -187,7 +198,32 @@ command file.
 Include files may be nested to any depth, up to the limit of available
 memory.
 
-@node QUIT, SET, INCLUDE, Utilities
+@node PERMISSIONS, QUIT, INCLUDE, Utilities
+@comment  node-name,  next,  previous,  up
+@section PERMISSIONS
+@vindex PERMISSIONS
+@cindex mode
+@cindex file mode
+@cindex changing file permissions
+
+@display
+PERMISSIONS
+        FILE='filename'
+        /PERMISSIONS = @{READONLY,WRITEABLE@}.
+@end display
+
+@cmd{PERMISSIONS} changes the permissions of a file.  
+There is one mandatory subcommand which specifies the permissions to
+which the file should be changed.  
+If you set a file's  permission  to READONLY, then the file will become
+unwritable either by you or anyone else on the system.
+If you set the permission to WRITEABLE, then the file will become
+writeable by you; the permissions afforded to others will be
+unchanged.
+This command cannot be used if the SAFER setting is active.
+
+
+@node QUIT, SET, PERMISSIONS, Utilities
 @section QUIT
 @vindex QUIT
 
@@ -213,6 +249,7 @@ SET
         /BLANKS=@{SYSMIS,'.',number@}
         /DECIMAL=@{DOT,COMMA@}
         /FORMAT=fmt_spec
+        /EPOCH=@{AUTOMATIC,year@}
 
 (program input)
         /ENDCMD='.'
@@ -315,7 +352,7 @@ files.  The data input subcommands are
 @table @asis
 @item BLANKS
 This is the value assigned to an item data item that is empty or
-contains only whitespace.  An argument of SYSMIS or '.' will cause the
+contains only white space.  An argument of SYSMIS or '.' will cause the
 system-missing value to be assigned to null items.  This is the
 default.  Any real value may be assigned.
 
@@ -327,6 +364,15 @@ The default DOT setting causes the decimal point character to be
 @item FORMAT
 Allows the default numeric input/output format to be specified.  The
 default is F8.2.  @xref{Input/Output Formats}.
+
+@item EPOCH
+@anchor{SET EPOCH}
+Specifies the range of years used when a 2-digit year is read from a
+data file or used in a date construction expression (@pxref{Date
+Construction}).  If a 4-digit year is specified, then 2-digit years
+are interpreted starting from that year, known as the epoch.  If
+AUTOMATIC (the default) is specified, then the epoch begins 69 years
+before the current date.
 @end table
 
 Program input subcommands affect the way that programs are parsed when
@@ -472,9 +518,16 @@ subcommands are
 @itemx MORE
 @itemx PAGER 
 @itemx WIDTH
-Currently not used.
 @end table
 
+@cindex headers
+@cindex length
+@cindex listing
+@cindex more
+@cindex pager 
+@cindex width
+
+
 Logging subcommands affect logging of commands executed to external
 files.  These subcommands are
 
@@ -501,8 +554,7 @@ perform.  The security subcommands are
 
 @table @asis
 @item SAFER
-When set, this setting cannot ever be reset, for obvious security
-reasons.  Setting this option disables the following operations:
+Setting this option disables the following operations:
 
 @itemize @bullet
 @item
@@ -510,11 +562,15 @@ The ERASE command.
 @item
 The HOST command.
 @item
+The PERMISSIONS command.
+@item
 Pipe filenames (filenames beginning or ending with @samp{|}).
 @end itemize
 
 Be aware that this setting does not guarantee safety (commands can still
 overwrite files, for instance) but it is an improvement.
+When set, this setting cannot be reset during the same session, for
+obvious security reasons.
 @end table
 
 @node SHOW, SUBTITLE, SET, Utilities