Linux command: How to 'find' only text files?

Question

After a few searches from Google, what I come up with is:

find my_folder -type f -exec grep -l \"needle text\" {} \\; -exec file {} \\; | grep text
         


        

Answer 1

I do it this way: 1) since there're too many files (~30k) to search thru, I generate the text file list daily for use via crontab using below command:

find /to/src/folder -type f -exec file {} \; | grep text | cut -d: -f1 > ~/.src_list &

2) create a function in .bashrc:

findex() {
    cat ~/.src_list | xargs grep "$*" 2>/dev/null
}

Then I can use below command to do the search:

findex "needle text"

HTH:)