$1.$ Write a grep command that will look for single$-$line comments in the both files $($log$3.$py and log$3.$c$).$ Note: a$-$ Python single$-$line comments can start with $$#$$ while C single$-$line comments start with $//.$ b$-$ Lines that start with $$#include$$ or $$#define$$ should not be matched. c$-$ The matched single$-$comments should start with line; lines has code and end with a single$-$single line comment should not be matched. d$-$ To simplify the BRE, you can use Linux pipelining to run two grep commands back$-$to$-$back where the matched lines by the first grep command are passed as input to the second grep command lines. e$-$ You can use the $-$v option in grep to exclude lines that match the BRE instead of including them. For example, you can have the output from the first grep command match all lines that start with $$#$$ or $//$ and then exclude those lines that start with $$#include$$ or $$#define$$ in the second grep command.