How to read next line?

[ramam174]

I have a text file:

primary1 : value;
secondary1: value;
teritiary1: value;

primary2 : value;
secondary2: value;
teritiary2: value;

While I can very well filter all the primary values, how do I get to read the immediate next line associated with each primary line?

Also, I'm interested in knowing how to read the 3rd or 'n'th line from the primary line?

Thanks in advance for any help.

- Ram

 

[PHV]

In the awk man page take a look at the getline function.

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ222-2244

 

[mikevh]

You could also use the NR variable to capture line number, then measure offset from that position. For example,

/^primary/ {line = NR}
NR - line == 2

This would print the 'teritiary' lines in your above example, since they're at an offset of 2 from the 'primary' lines.