Question

This seems like it should be easy, but I can’t get the right syntax. I’m trying to use grep to find all files with a certain token that have at least one line following the line with the token in it. So something like:

blah blah token blah
another line here

would be found by the grep, but not:

blah blah token blah

Answer 1

I’m pretty sure grep doesn’t do multi-line stuff like this (though there is a -A option to print trailing context). One way would be to use head to cut off the last line first, then pipe it to grep:

for f in *; do
    echo "$f:"
    head -n -1 "$f" | grep token

Above code is not tested, I’m stuck on Windows atm.