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Top Forums Shell Programming and Scripting Merge 2 text files to one text file side by side Post 302283917 by quirkasaurus on Wednesday 4th of February 2009 10:28:38 AM
Old 02-04-2009
ok.... totally different approach since paste is causing you so much trouble:

Code:
#!/bin/ksh

len_a=$( wc -l < a )
len_b=$( wc -l < b )

if [ $len_a -gt $len_b ]; then
  max=$len_b
else
  max=$len_a
fi

(
head -n $max a
head -n $max b
) | pr -l$max -2

maybe cj can help make this POSIX compliant. Smilie
 

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ROAD(7) 						 Miscellaneous Information Manual						   ROAD(7)

NAME
road, gps - road map of the United States SYNOPSIS
games/road [ -g ] [ -s scale ] games/gps DESCRIPTION
Road displays a road map centered around some specified place in the United States. The data comes from the Census Bureau Tiger Database. The map is drawn in three shades of grey. Light grey is used for water features such as rivers, streams and lakes. Dark grey is used for railroads and airports. Black is used for roads. On terminals with ldepth zero, all shades appear black. Without options, the center of the map is the latitude and longitude specified in the file /lib/sky/here. If the -g option is given, the center of the map will be the latitude and longitude specified by continually monitoring the end of the file /tmp/gpslog. This file is written by the GPS satellite receiver program gps. With this option, and with gps running, road becomes a moving map display suitable for cars or planes. Keyboard commands s number sets the scale of the map to number. The number can be prefixed with + or - to increase/decrease the current scale. Scale 6 is about one mile across the screen and scale 10 is about ten miles across. Scales 1 through 10 are drawn with maximum detail showing all roads, trails, rivers, streams and airports. Scales 11 through 14 show highways, rivers, airports and county boundaries. Scales 15 through 20 show interstate highways and state boundaries. /regexp All features labeled by text matching the regular expression are highlighted. p place centers the map at the specified place. Usually the place must have the associated state code, (eg murrayhill,nj) but places like lax and ewr are also known. l latitude longitude centers the map at the specified coordinate. g toggles the -g option described above. q Exit. Mouse button commands Button 1 displays the text of the line nearest the cursor. Normally this is the name of a street or river. Button 2 displays the text of the place nearest the cursor. Normally this is a town. Button 3 centers the display on the cursor position. Gps reads /dev/eia0 assumed connected to a Garmin GPS-55 satellite receiver and writes the current location on the end of the file /tmp/gpslog. It is intended to be used with mobile PC's. FILES
/lib/roads/LLLL/LLLLGGGG.h scale 1-10 database files where LLLL is the latitude multiplied by 5 and GGGG is the longitude multiplied by 5. /lib/roads/LLL/LLLGGG.h scale 11-14 database files where LLL is the latitude multiplied by 1 and GGG is the longitude multiplied by 1. /lib/roads/LL/LLGG.h scale 15-20 database files where LL is the latitude multiplied by 0.2 and GG is the longitude multiplied by 0.2. /lib/roads/place /lib/roads/place.local are the translations between place names and locations. These files must be sorted. /lib/sky/here default starting map center. /tmp/gpslog moving map location. SOURCE
/sys/src/games/road /sys/src/games/gps ROAD(7)
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