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Full Discussion: Filtering duplicate lines
Top Forums UNIX for Advanced & Expert Users Filtering duplicate lines Post 14996 by AreaMan on Friday 8th of February 2002 01:12:36 PM
Old 02-08-2002
The order is indeed chaos. The information is to be ploted out. If the input order is lost then the plot loses meaning.

VELSTK1621-45
' ' 3031487.7 379165.3
VELSTK1621-45
' ' 3032181.8 379848.9
VELSTK1629-45
' ' 3005331.9 348245.4
VELSTK1629-45
' ' 3006027.4 348927.5
VELSTK1629-45
' ' 3006724.5 349610.6
VELSTK1629-45
' ' 3007420.4 350291.5
VELSTK1629-45
' ' 3008116.8 350974.5

I only need the first instance of a line begining with "VEL", however, if I sort it the attached information becomes jumbled.

Cheers
 
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PLOT(1) 						      General Commands Manual							   PLOT(1)

NAME
plot - graphics filter SYNOPSIS
plot [ file ... ] DESCRIPTION
Plot interprets plotting instructions (see plot(6)) from the files or standard input, drawing the results in a newly created 81/2(1) win- dow. Plot persists until a newline is typed in the window. Various options may be interspersed with the file arguments; they take effect at the given point in processing. Options are: -d Double buffer: accumulate the plot off-screen and write to the screen all at once when an erase command is encountered or at end of file. -e Erase the screen. -c col Set the foreground color (see plot(6) for color names). -f fill Set the background color. -g grade Set the quality factor for arcs. Higher grades give better quality. -p col Set the pen color. -w Pause until a newline is typed on standard input. -C Close the current plot. -W x0,y0,x1,y1 Specify the bounding rectangle of plot's window. By default it uses a 512x512 window in the middle of the screen. SOURCE
/sys/src/cmd/plot SEE ALSO
81/2(1), plot(6) PLOT(1)

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