Shell Programming and Scripting

Hi Experts,
I am trying to get the output from a matching pattern but unable to construct the awk command:

file :

Code:

aa bb cc 11
dd aa cc 33
cc 22 45 68
aa 33 44 44
dd aa cc 37
aa 33 44 67

I want the output to be : ( if $1 match to "aa" start of the line,then print $4 of that line, and if $1 matches to "dd" of start of that line then print $4 of that line).

I am trying with this:

Code:

 awk '/^aa/{A=$4};/^dd/{D=$4}END{print A,D}' file

But not working!, it is only printing the last finding seems to be.


The out put needs to be:

Code:

aa 11
dd 33
aa 44
dd 37
aa 67

Thanks.

From what I see is that you are trying to print $1 and $4.

I don't see any complexions here on your output!

Hey,

Try something like this,

Code:

awk '/^aa|^dd/{print $1,$4;}' file

Cheers,
Ranga

Code:

awk '$1=="aa" || $1=="dd" {print $1,$4}'

Code:

aa 11
dd 33
aa 44
dd 37
aa 67