UNIX for Dummies Questions & Answers

Hi everybody,

Fairly simple question here:

I need an awk, sed, or grep command that will find the same string multiple times on one line

needs to return all lines which contain .02 twice.

I do know the exact number of characters in between the two occurrences of .02 if that helps, all such lines are --------.02------.02------ with exactly six characters in between, but an indefinite amount of characters before and after.

Thank you

Code:

grep -E '\.02.{6}\.02' infile

Code:

awk ' (p=index($0, ".02") ) 
       {
            p+=3; 
            a=substr($0,p) 
            if(index(a, ".02")==1)
            {
                print $0}
            }  
       }
       {next} ' inputfile > outputfile

Start with that.

does that work with directories as well? I tried using this:

Code:

u=$(ls /XXXX/XXXX/XXXX/I3 | grep -E '\.02.{6}\.02')

to find all the lines which contained .02 .02 in that directory, to no avail.

Are you looking for files or strings within lines of a file.

Should have been more clear about the terms of search.

Hi everybody,

Fairly simple question here:

I need an awk, sed, or grep command that will find the same string multiple times on one line

needs to return all lines which contain .02 twice.

I do know the exact number of characters in between the two occurrences of .02 if that helps, all such lines are --------.02------.02------ with exactly six characters in between, but an indefinite amount of characters before and after.

Thank you

I'm searching a directory for the occurence of this string (.02) twice in the filenames within this directory.

Code:

grep -E "\.02.{6}\.02" file