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Shell Programming and Scripting

two file comparison

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# 1  
Old 02-10-2011
two file comparison
now i have a different file zoo.txt with content
Code:
123|zoo
234|natan
456|don

and file rick.txt with contents

Code:
123|dog|pie|pep
123|tail|see|newt
456|som|sin|sim
234|pay|rat|cat

i want to look for lines in file zoo.txt column1 that has same corresponding lines in column 1 of file rick.txt . then output all lines in file zoo.txt and column 2,3 of file rick.txt. should look like
Code:
123|zoo|dog|pie
123|zoo|tail|see
456|don|som|sin
234|natan|pay|rat

Last edited by dealerso; 02-11-2011 at 03:19 AM..
# 2  
Old 02-10-2011
Code:
nawk -F'|' 'FNR==NR{f2[$1]=$2 FS $3;next} $NF=$NF FS f2[$1]' OFS='|' rick.txt zoo.txt

ooops, not exactly what's needed......
Last edited by vgersh99; 02-10-2011 at 06:27 PM..
# 3  
Old 02-10-2011
i am unable to use nawk, i get some error
# 4  
Old 02-10-2011
Quote:
Originally Posted by dealerso
i am unable to use nawk, i get some error
define 'some error', please. What happens?
Try using 'awk' or 'gawk' instead.
What OS are you under?
Either way, this solution doesn't provide exactly what you're after and I have to run. Other will be able to tweak it for you.
Good luck!
# 5  
Old 02-11-2011
when i use awk i get the output
Code:
123|zoo|tail|see
234|natan|pay|rat
456|don|som|sin

it should be
Code:
123|zoo|dog|pie
123|zoo|tail|see
234|natan|pay|rat
456|don|som|sin

# 6  
Old 02-11-2011
Try this:
Code:
awk -F"|" 'NR==FNR{a[$1]=$2; next}
a[$1]{print $1 FS a[$1] FS $2 FS $3}
' zoo.txt rick.txt

# 7  
Old 02-11-2011
Code:
awk 'NR==FNR{a[$1]=$1 FS $2;next}a[$1]{print a[$1] FS $2 FS $3}' FS="|" zoo rick
123|zoo|dog|pie
123|zoo|tail|see
456|don|som|sin
234|natan|pay|rat

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