Getline

[unmaxpine]

Hello,

I would like to print the line -1 and the currentline in awk (by looking the * in a report) but I dont'know how to do:

I tried:

awk "/\*/{for(i=0;i<=1;i++){print;getline}}"

By this way, I have the current line and the next one.

I tried with ex too:

>File_out
ex File<<!
>g/\*/.-1,.+1w>>File_out
>q
>!

But by this way, I dont have the currentline.

Does anyone have an idea ?

 

[PHV]

What about this ?
awk '/\*/{print x;print}{x=$0}' File > File_out

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

 

[unmaxpine]

Thanks works fine !

Coud you explain me the print x ?

Thanks

 

[p5wizard]

The first program part runs if a '*' is found: [red]print x[/red] : prints saved last line (saved in variable x) and [red]print[/red] : prints current line.

The second program part runs on every line: [red]x=$0[/red] : just saves the line ($0) in variable x so that it can be used in the first program part should the next line contain a '*'.


HTH,

p5wizard