calculate from three files

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# 1  
Old 01-08-2008
calculate from three files

Hi all
I have 3 three files like:




i would like out put file like:


i wolud like


please help me on this.
# 2  
Old 01-08-2008
what have you tried?
# 3  
Old 01-08-2008
paste file1 file2 file3 |sed 's/|/ /g'|awk '{ if ($6=="") $6=0;if ($4=="") $4=0; if ($2=="") $2=0;print $1 "|" $2 "|" $4 "|" $6"|"$2+$4-$6;}'


# 4  
Old 01-08-2008
# 5  
Old 01-08-2008
$ paste -d "|" filex filey filez | awk '
> BEGIN{OFS=FS="|"} {print $1,$2,$4,$6,$2+$4-$6}
> ' | awk 'BEGIN{OFS=FS="|"}{ for(i=0;i<=NF;i++)
> if ( $i == "" )
> $i=0
> print $0}'

# 6  
Old 01-08-2008
Another one:

awk '
!f { f2[$1] = $2; next }
f == 3 { f3[$1] = $2; next }
f == 1 { $3 = (f2[$1] ? f2[$1] : 0)
    $4 = (f3[$1] ? f3[$1] : 0)
    $5 = $2 + f2[$1] - f3[$1]
}1' FS="|" OFS="|" file2 f=3 file3 f=1 file1

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