$($This is in Bash by the way. Cant figure it out$)$

Using "for", "find", $"$if$",$ and "grep", what commands would you use to list which php

files have the word "user" in it$.$

Hints:

a$)$ I don't mean "user.php$",$ I mean a file that contains the word "user" in its content.

b$)$ Remember that grep returns unsuccessful if it cannot find any line that matches

the search pattern

c$)$ grep $-$ just prints the name of the file if it finds a match