look

A C++ implementation of grep built from scratch to match String patterns.

Description

This project recreates the functionality of Unix grep, supporting:

• Multithreading for faster output
• Searching text files for patterns
• Multiple patterns and files supported
• Case-sensitive and case-insensitive search
• Highlighting for visually appleaing appearance

How to run the program

$git clone <repo url>
$cd looks
$make

Usage

for help

$./look --h

to begin with basic search

$./look <pattern(s)> --f <filename(s)>

to spawn n numbers of threads

$./look <pattern(s)> --f <filename(s)> --t=n

to activate strict search(to match the exact pattern,not string containing the pattern as substring)

$./look <pattern(s)> --f <filename(s)> --s

to activate case-insensitive searching

$./look <pattern(s)> --f <filename(s)> --i

to disable highlighting

$./look <pattern(s)> --f <filename(s)> --nh

to show summary(less)

$./look <pattern(s)> --f <filename(s)> --l

to pipe in the file

$program | ./look <pattern(s)>

to pipe out the search result as a text file

$./look <pattern(s)> --f <filename(s)> >>result.txt