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col (1)
  • col (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • col (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • col (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • >> col (1) ( Linux man: Команды и прикладные программы пользовательского уровня )

  • BSD mandoc
     

    NAME

    
    
    col
    
     - filter reverse line feeds from input
    
     
    

    SYNOPSIS

    col [-bfpx ] [-l num ]  

    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, and replaces white-space 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.

    The options are as follows:

    -b
    Do not output any backspaces, printing only the last character written to each column position.
    -f
    Forward half line feeds are permitted (``fine'' mode). Normally characters printed on a half line boundary are printed on the following line.
    -p
    Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input other than those recognized and interpreted by itself, which are listed below.
    -x
    Output multiple spaces instead of tabs.
    -l num
    Buffer at least num lines in memory. By default, 128 lines are buffered.

    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
    carriage return
    (13)
    newline
    forward line feed (10); also does carriage return
    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.  

    SEE ALSO

    expand(1), nroff(1), tbl(1)  

    STANDARDS

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

    HISTORY

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


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SEE ALSO
    STANDARDS
    HISTORY


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