SYNOPSIS

       pg [-number] [-p string] [-cefnrs] [+line] [+/pattern/] [file . . .]

DESCRIPTION

       Pg  displays  a  text  file on a CRT one screenful at once.  After each
       page, a prompt is displayed. The user may then either press the newline
       key to view the next page or one of the keys described below.

       If  no  filename  is  given on the command line, pg reads from standard
       input.  If the standard output is not a terminal, pg acts  like  cat(1)
       but precedes each file with its name if there is more than one.

       If  input  comes from a pipe, pg stores the data in a buffer file while
       reading to make navigation possible.

       Pg accepts the following options:

       -number
              The number of lines per page. Usually, this is the number of CRT
              lines minus one.

       -c     Clear  the  screen  before  a  page is displayed if the terminfo
              entry for the terminal provides this capability.

       -e     pg will not pause and display (EOF) at the end of a file.

       -f     pg does not split long lines.

       -n     Without this option, commands must be terminated  by  a  newline
              character.  With  this option, pg advances once a command letter
              is entered.

       -p string
              Instead of the prompt  : , string is displayed.  If string  con-
              tains %d , its first occurrence is replaced by the number of the
              current page.

       -r     Disallow the shell escape.

       -s     Print messages in standout mode if the terminfo  entry  for  the
              terminal provides this capability.

       +number
              Start at the given line.

       +/pattern/
              Start  at  the  line  containing  the regular expression pattern
              given.

       The following commands may be entered at the prompt. Commands  preceded
       by  i  in  this document accept a number as argument, positive or nega-
       tive.  If this argument starts with + or -, it is interpreted  relative

       iw or iz
              Behave as <newline> except that i becomes the new page size.

       . or ^L
              Redraw the screen.

       $      Advance to the last line of the input file.

       i/pattern/
              Search forward until the first or the  i-th  occurrence  of  the
              regular expression pattern is found. The search starts after the
              current page and stops at the end of the file. No wrap-around is
              performed.  i must be a positive number.

       i?pattern? or i^pattern^
              Search  backward  until  the first or the i-th occurrence of the
              regular expression pattern is found. The  search  starts  before
              the  current  page  and  stops at the beginning of the file.  No
              wrap-around is performed.  i must be a positive number.

       The search commands accept an added letter. If t  is  given,  the  line
       containing  the pattern is displayed at the top of the screen, which is
       the default.  m selects the middle and b the bottom of the screen.  The
       selected position is used in following searches, too.

       in     Advance to the next file or i files forward.

       ip     Reread the previous file or i files backward.

       s filename
              Save the current file to the given filename.

       h      Display a command summary.

       !command
              Execute command using the shell.

       q or Q Quit.

       If  the  user presses the interrupt or quit key while pg reads from the
       input file or writes on the terminal, pg will immediately  display  the
       prompt.  In all other situations these keys will terminate pg.

       Pg   uses   limited   regular   expressions   as  described  in  ed(1).
       /usr/5bin/pg  uses  simple   regular   expressions,   /usr/5bin/s42/pg,
       /usr/5bin/posix/pg,   and   /usr/5bin/posix2001/pg  use  basic  regular
       expressions.

ENVIRONMENT VARIABLES

       The following environment variables affect the behavior of pg:


       LINES  Overrides the system-supplied number of lines if set.

       SHELL  Used by the ! command.

       TERM   Determines the terminal type.

SEE ALSO

       cat(1),   ed(1),  more(1),  sh(1),  terminfo(5),  locale(7),  regex(7),
       term(7)

NOTES

       Pg expects the terminal tabulators to set on eight positions.

       Pg contains limited support for terminal escape sequences in its input,
       e.g.  it  is  possible  to  view  text  in  color  and boldface as with
       ``lc | pg''.  Sequences that affect more than one output line  are  not
       supported, though.



Heirloom Toolchest                  1/24/05                              PG(1)