find text in files

grep -rnw '/path/to/somewhere/' -e 'pattern'

Search strings like:
local ESSE_A={}, VA
local ESSE_A=555, TYPE
and so on

grep -rn './lua' -e 'local [a-z,A-Z,0-9,_, ,{}]*=[a-z,A-Z,0-9,_, ,{}]*,'