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Manual Pages  — COLUMN

NAME

column – columnate lists

CONTENTS

SYNOPSIS


column [-tx] [-c columns] [-s sep] [file ...]

DESCRIPTION

The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by default, from the standard input. Empty lines are ignored.

The options are as follows:
-c
  Output is formatted for a display columns wide.
-s
  Specify a set of characters to be used to delimit columns for the -t option.
-t
  Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with the characters supplied using the -s option. Useful for pretty-printing displays.
-x
  Fill columns before filling rows.

ENVIRONMENT

The COLUMNS, LANG, LC_ALL and LC_CTYPE environment variables affect the execution of column as described in environ(7).

EXIT STATUS

The utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

    (printf "PERM LINKS OWNER GROUP SIZE MONTH DAY " ; \

    printf "HH:MM/YEAR NAME\n" ; \

    ls -l | sed 1d) | column -t

SEE ALSO

colrm(1), ls(1), paste(1), sort(1)

HISTORY

The column command appeared in BSD 4.3 Reno .

BUGS

Input lines are limited to LINE_MAX (2048) bytes in length.

COLUMN (1) July 29, 2004

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As soon as we started programming, we found to our surprise that it wasn't as easy to get programs right as we had thought. Debugging had to be discovered. I can remember the exact instant when I realized that a large part of my life from then on was going to be spent in finding mistakes in my own programs.
— Maurice Wilkes