Search for multiple strings in specific position

Shell Programming and Scripting
1

Hi,

I need to search for some strings in specific positions in a file.

If the strings: "foo1", "foo2" or "foo3" is on position 266 or position 288 in a file i want the whole line printed.

Any idea how to do it?

2

you can use grep -x for finding specific string in file.

3

But i cannot specify the position then?

The strings may be at more places but they are only interesting if they are in this positions.

4

With some hardwiring, but... something to start with:

nawk -v str='foo1|foo2|foo3' 'substr($0, 266, 4) ~ str || substr($0, 288, 4) ~ str' myFile
5

:b:

Thanks, thanks & thanks again!

It solved my problem.

:b:

6

a more generic solution:

nawk -v str='foo1 foo2 foo3' -v pos='266 288' -f hugo.awk myFile

hugo.awk:

BEGIN {
   split(str, strA, FS)
   split(pos, posA, FS)
}
{
   for(strI=1; strI in strA; strI++)
      for(posI=1; posI in posA; posI++)
        if ( posA[posI] == match($0, strA[strI]) ) {
           print
           next
        }
}