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Full Discussion: help with awk script (if else)
Top Forums UNIX for Dummies Questions & Answers help with awk script (if else) Post 302337521 by zajtat on Friday 24th of July 2009 10:04:47 AM
Old 07-24-2009
help with awk script (if else)
Hi everybody,

I's really appretiate if somebody could help me with the following problem:
I've got file1 like this:
Code:
aaa bbb ccc
hhh eee fff
aaa bbb ccc
aaa bbb ccc
kkk eee fff
aaa bbb ccc
aaa bbb ccc
ooo ppp ccc
qqq www eee

And file2 like this:
Code:
hhh
kkk
ooo
qqq

What I need is if first column of file1 matches the first column of file2, than print "A" otherwise print "B".
I did have a look on the forum and managed to write a little script of my own, but it doesn't work. Here's my script:

Code:
 
a=awk'{print$1}' file1.txt
b=awk'{print$2}' file2.txt
awk'
if (a==b)
print "A"
else
print "B"' > file3

Then I change the mode to executable and type:
./code file1 file2

and it says command not found.

Thank you for your help in advance!
Last edited by radoulov; 07-24-2009 at 11:20 AM.. Reason: added code tags
 

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LEARN ABOUT V7

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)
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