To search for a specific text on a Linux system, the grep command can be used according to the following syntax:
grep -iRl "text_to_search" ./
The basic parameters are:
The folder path to be searched is specified last.
The grep command has other parameters that may be useful for searching, such as:
Some examples of grep usage:
grep "sodium.so" /etc/php/7.2/apache2/php.ini
grep -iRl "memory_limit" /