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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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MTAIL(1)							   User Commands							  MTAIL(1)

NAME
mtail - tail variant designed for web developers monitoring logfiles SYNOPSIS
mtail [options] <file>... DESCRIPTION
MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the output whenever a pause in output over 3 seconds is detected. MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo. OPTIONS
-q Quiet mode --quiet " " -n Output the last N lines of each file before tailing (defaults to 0) <file>... Files to tail. These can specified in the following ways: @<groupname> - expands the group (from .mtailrc) to a list of files to tail <filename> - tails a local file. +<filename> - attempts to sudo and tail a local file (will prompt for pwd if required). <remotehost>:<filename> - attempts to invoke tail via ssh on a remote host. +<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a remote host (will prompt for pwd if required). SEE ALSO
mtailrc(5), tail(1) AUTHOR
Martyn Smith <martyn@dollyfish.net.nz> mtail May 2008 MTAIL(1)
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