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Top Forums Shell Programming and Scripting Finding Maximum value in a column Post 302439984 by jaysean on Sunday 25th of July 2010 12:09:09 PM
Old 07-25-2010
Please see this:
There are 4 tab-delimited columns. 3rd column may have spaces in the name.

Code:
2655	96	IA	0.8179
2655	96	eugene	0.8144
2655	96	CPU	0.4275
2655	96	RMA	0.3407
2655	96	P Proc Tran CPU	0.3377
2655	96	ASUS K	0.2846
2655	96	MSI	0.1921
2655	96	LGVu	0.029
2655	96	IA	0.8373
2655	96	eugene	0.8338
2655	96	CPU	0.4469
2655	96	RMA	0.31
2655	96	P Proc Tran CPU	0.3571

Result should look like this:

Code:
2655	96	IA	0.8373
2655	96	eugene	0.8338
2655	96	CPU	0.4469
2655	96	RMA	0.3407
2655	96	P Proc Tran CPU	0.3571
2655	96	ASUS K	0.2846
2655	96	MSI	0.1921
2655	96	LGVu	0.029

 

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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
(echo "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. BSD
March 9, 2008 BSD
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