How to find files with text started with

Question

I tried to use

find ./ -type f -name '*.php' -exec grep -slE '^asdasd' {} \;

and

find ./ -type f -name '*.php' -exec pcregrep -l '^asdasd' {} \;

But this commands found files, where 'asdasd' in beginning of lines, not of all text, for example:

File content:

qweqwe

asdasd

czczc

I want to find files only with this file content:

asdasd

qwdq

qwdad

(asdasd in beginning of all text)

Answer 1

^(asdasd|qwdq|qwdad) to regexp only part you want to find OR ^(asdasd|qwdq|qwdad).* to regexp full line

Answer 2

With awk you can check if the first line matches whatever saying:

awk 'NR==1 && /pattern/' file

If you want to print its file name, then say:

awk 'NR==1 && /pattern/ {print FILENAME}'

To combine it with find and check if the first line starts with "asdasd", use:

find -type f -exec awk 'NR==1 && /^asdasd/ {print FILENAME}' {} \;