Unix wc command implementation in C

This project is a C implementation of the Unix wc (word count) command. It provides functionality to count bytes, lines, words, and characters in a file or from standard input.

Prerequisites

To compile and run this program, you need:

• GCC

Compilation

gcc -o wc wc.c

Usage

./wc [OPTION] [FILE]

If no FILE is specified, read standard input.

Options:

• -c : print the byte counts
• -l : print the newline counts
• -w : print the word counts
• -m : print the character counts

Without any options, the program prints line, word, and byte counts.

Examples

Count lines, words, and bytes in a file:

./wc test.txt

Output:

7145 58164 342190 test.txt

Count only words in a file:

./wc -w test.txt

Output:

58164 test.txt

Count bytes from standard input:

cat test.txt | ./wc -c

Output:

342190