Man Pg en anglais
PG(1)                            User Commands                           PG(1)



 

NAME


       pg - browse pagewise through text files

 

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.

 

OPTIONS


       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 Basic Regular  Expression  pat-
              tern given.

 

USAGE


       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
       to the current position in the input file, otherwise  relative  to  the
       beginning.

       i
              Display the next or the indicated page.

       id or ^D
              Display  the  next  halfpage. If i is given, it is always inter-
              preted relative to the current position.

       il     Display the next or the indicated line.

       if     Skip a page forward.  i must be a positive number and is  always
              interpreted relative to the current position.

       iw or iz
              Behave as  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
              Basic 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
              Basic  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.

 

ENVIRONMENT VARIABLES


       The following environment variables affect the behaviour of pg:

 

       COLUMNS


              Overrides the system-supplied number of columns if set.

       LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES
              See locale(7).

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

       SHELL  Used by the !  command.

       TERM   Determines the terminal type.

 

SEE ALSO


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

 

NOTES


       pg expects the terminal tabulators to set on eight positions.

       Files that include NUL characters cannot be displayed by pg.

 

AVAILABILITY


       The pg command is part of the util-linux-ng package  and  is  available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.



Gunnar Ritter                     2001-04-25                             PG(1)