Provided by: bsdextrautils_2.36.1-8ubuntu1_amd64 bug

NAME

       col - filter reverse line feeds from input

SYNOPSIS

       col [options]

DESCRIPTION

       col  filters  out  reverse  (and  half-reverse) line feeds so the output is in the correct
       order, with only forward and half-forward line feeds.  It  also  replaces  any  whitespace
       characters  with  tabs  where  possible.   This  can be useful in processing the output of
       nroff(1) and tbl(1).

       col reads from standard input and writes to standard output.

OPTIONS

       -b, --no-backspaces
              Do not output any backspaces, printing only the  last  character  written  to  each
              column position.

       -f, --fine
              Permit  half-forward  line  feeds.   Normally  characters  destined for a half-line
              boundary are printed on the following line.

       -h, --tabs
              Output tabs instead of multiple spaces.

       -l, --lines number
              Buffer at least number lines in memory.  By default, 128 lines are buffered.

       -p, --pass
              Force unknown control sequences to be passed through unchanged.  Normally col  will
              filter  out  any  control  sequences other than those recognized and interpreted by
              itself, which are listed below.

       -x, --spaces
              Output multiple spaces instead of tabs.

       -V, --version
              Display version information and exit.

       -H, --help
              Display help text and exit.

CONFORMING TO

       The col utility conforms to the Single UNIX Specification, Version 2.  The -l option is an
       extension to the standard.

NOTES

       The  control  sequences  for carriage motion that col understands and their decimal values
       are listed in the following table:

              ESC-7             reverse line feed (escape then 7)
              ESC-8             half reverse line feed (escape then 8)
              ESC-9             half forward line feed (escape then 9)
              backspace         moves back one column (8); ignored in the first column
              newline           forward line feed (10); also does carriage return
              carriage return   (13)
              shift in          shift to normal character set (15)
              shift out         shift to alternate character set (14)
              space             moves forward one column (32)
              tab               moves forward to next tab stop (9)
              vertical tab      reverse line feed (11)

       All unrecognized control characters and escape sequences are discarded.

       col keeps track of the character set as characters are read and makes sure  the  character
       set is correct when they are output.

       If  the  input  attempts  to  back up to the last flushed line, col will display a warning
       message.

HISTORY

       A col command appeared in Version 6 AT&T UNIX.

SEE ALSO

       expand(1), nroff(1), tbl(1)

AVAILABILITY

       The col command is part of the util-linux package  and  is  available  from  Linux  Kernel
       Archive ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.