Script for Linux, using Grep. It searches recursively all the .md files inside a folder. It uses a regular expression, so the input is 2 words, and it returns the lines containing both of those (one could be empty). Useful to search through a massive database of links saved in markdown.

md-search-grep.sh

# SETTINGS
readonly docsRoute=~/Documents/search-repos

# CODE
doAsearch () {
    echo -------------------------------------------------------------------------------------------------------------------
    echo New search. Enter the search terms [word1 and word2]:
    echo word1:
    read word1
    echo word2:
    read word2
    regExSearchString="$word1.*$word2|$word2.*$word1"

    #echo Printing all the lines than contain [$word1] and [$word2].
    echo 
    grep --color=always -Hrn -i -E $regExSearchString --include *.md | awk '{print $0,"\n"}'

    doAsearch
}

cd $docsRoute
pwd
doAsearch