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Full Discussion: Column for unix
Top Forums UNIX for Dummies Questions & Answers Column for unix Post 302241581 by Annihilannic on Monday 29th of September 2008 08:01:01 PM
Old 09-29-2008
Java? That's an awk script.

Could could put it on one line and use no comments and shorter variable names if you wish, e.g.

Code:
ls | awk 'BEGIN{if(!(w>0))w=80}length>m{m=length}{a[NR]=$0}END{c=int(w/++m);for(i=1;i<=NR;i++){printf("%-"m"s",a[i]);if(!(i%c))print""}if(--i%c)print""}'

You could implement the same algorithm easily enough in pure shell code or perl if you preferred.

You may be thinking of something like ls | paste - - - - (to format ls output into four columns, but that won't adjust the column widths to make them line up.
 

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COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME
column -- columnate lists 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. Column exits 0 on success, >0 if an error occurred. ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available. EXAMPLES
(printf "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME " ; ls -l | sed 1d) | column -t SEE ALSO
colrm(1), ls(1), paste(1), sort(1) HISTORY
The column command appeared in 4.3BSD-Reno. AVAILABILITY
The column command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/. BSD
June 6, 1993 BSD
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