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Full Discussion: sorting an ascii file
Top Forums UNIX for Dummies Questions & Answers sorting an ascii file Post 302244146 by joeyg on Tuesday 7th of October 2008 10:05:08 AM
Old 10-07-2008
Hammer & Screwdriver The following is one approach to your questions

I expanded the sample you provided to make the output more obvious.

Code:
> cat file13
Header text
256 5000 4018 
300 5009 4008 
256 5006 4008 
200 6000 3000
128 5008 4009

> tail +2 file13 | sort -k1,2
128 5008 4009
200 6000 3000
256 5000 4018 
256 5006 4008 
300 5009 4008

The tail +2 skips to the 2nd line of input; for you, perhpas try +11
The sort -k1,2 sorts on the first field then the second

To get the high and low values:
Code:
> tail +2 file13 | cut -d" " -f1 | sort | head -1
128
> tail +2 file13 | cut -d" " -f1 | sort | tail -1
300
> tail +2 file13 | cut -d" " -f2 | sort | head -1
5000
> tail +2 file13 | cut -d" " -f2 | sort | tail -1
6000

 

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MAKE(1) 						      General Commands Manual							   MAKE(1)

NAME
make - a program for maintaining large programs SYNOPSIS
make [-f file] [-iknpqrst] [option] ... [target] OPTIONS
-f Use file as the makefile -i Ignore status returned by commands -k On error, skip to next command -n Report, but do not execute -p Print macros and targets -q Question up-to-dateness of target -r Rule inhibit; do not use default rules -s Silent mode -t Touch files instead of making them EXAMPLES
make kernel # Make kernel up to date make -n -f mfile # Tell what needs to be done DESCRIPTION
Make is a program that is normally used for developing large programs consisting of multiple files. It keeps track of which object files depend on which source and header files. When called, it does the minimum amount of recompilation to bring the target file up to date. The file dependencies are expected in makefile or Makefile , unless another file is specified with -f. Make has some default rules built in, for example, it knows how to make .s files from .c files. Here is a sample makefile . d=/user/ast # d is a macro program: head.s tail.s# program depends on these cc -o program head.s tail.s# tells how to make program echo Program done. # announce completion head.s: $d/def.h head.c # head.s depends on these tail.s: $d/var.h tail.c # tail.s depends on these A complete description of make would require too much space here. Many books on UNIX discuss make . Study the numerous Makefiles in the MINIX source tree for examples. SEE ALSO
cc(1). MAKE(1)
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