Outputs the line of the first occurence of a pattern with grep

all-occurences.sh

$ grep -n --exclude-dir="node_modules"  'term to be searched for' -r # searches recursively for a term and outputs with line number

first-occurence.sh

$ grep -n 'style="' my-file.html | head -1 | cut -d : -f 1  # outputs just the number
$ grep -n 'style="' my-file.html | head -1  # outputs the number and the content found