AWK help 2

[santhas]

I have two files

File1
filer_xxxxx_Wed_Full
/vol/vol1/qtree
....
....

File2
/vol/vol1/qtree

I want read File2 and if the line in File2 matches a line in File1 then print the line previous to matching line.

I tried with this command

for ln in `cat /tmp/File2`; do nawk -v var=$ln '/var/{print $0};{x=$0}' /tmp/File1; done

But it returns nothing, but I know there are matching condition.

Could someone help me here?

Thanks

 

[PHV]

what about this ?

for ln in `cat /tmp/File2`; do  nawk -v var=$ln '$0~var{print x}{x=$0}' /tmp/File1; done

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[Annihilannic]

var will not be interpreted between /'s.

Try $0 ~ var instead.

Annihilannic.

 

[santhas]

Thanks for the input. It didn't help me. It prints everything from File2. I want to print the line above the matching line from File1 ( Ex: filer_xxxxx_Wed_Full)

Thanks

 

[Annihilannic]

PHV's solution should work fine, did you remember to change print $0 to print x?

Another pure awk solution would be:

awk '
        NR==FNR { targets[$1]=1 ; next }
        $0 in targets { print x }
        { x=$0 }
' File2 File1

This presumes that File2 contains whole lines to match in File1.

Annihilannic.

 

[santhas]

Thanks Guys. Both worked for me. Appreciated.