pr  -  print file

     pr [ -h header ] [ -n ] [ +n ] [ -wn ] [ -ln ] [ -t ] [ -sc
     ] [ -m ] name

     Pr produces a printed listing of one or more files.  The
     output is separated into pages headed by a date, the name of
     the file or a specified header, and the page number.  If
     there are no file arguments, pr prints its standard input,
     and is thus usable as a filter.

     Options apply to all following files but may be reset
     between files:

     -n   produce n-column output

     +n   begin printing with page n

     -h   treat the next argument as a header to be used instead
          of the file name

     -wn  for purposes of multi-column output, take the width of
          the page to be n characters instead of the default 72

     -ln  take the length of the page to be n lines instead of
          the default 66

     -t   do not print the 5-line header or the 5-line trailer
          normally supplied for each page

     -sc  separate columns by the single character c instead of
          by the appropriate amount of white space.  A missing c
          is taken to be a tab.

     -m   print all files simultaneously, each in one column

     Interconsole messages via write(I) are forbidden during a

     /dev/tty?  to suspend messages.

     cat (I), cp (I)

     none; files not found are ignored