Search files for line

file-contains-in-x-lines.sh

#!/usr/bin/env bash
# usage: file-contains-in-x-lines matchy path/to/file

# Check if single file contains "matchy" in the first 10 lines
head -n 10 $2 | grep -m 1 $1

find-files-matching-line.sh

#!/usr/bin/env bash
# usage: find-files-matching-line matchy .

# Find files that contain "matchy" in the first 10 lines
grep -m 1 -n $1 $2 -H | awk -F'[:]' '{if($2 <= 10) print($1) }'