Assignment1

shell program in C language

This repository contains basic shell commands of linux operating system implemented in C language.

The list of commands are:

ls --> list the contents of given directory or current working directory if no directory name passed
Cp --> copies file to file, multiple files to directory and directory to directory
Cd --> change the current working directory
rm --> removes a file or a directory having multiple files and directories
Mkdir --> makes a directory of given pathname
grep --> It matches a search term in a file or multiple files and prints that line. If empty search term given, matches nothing. If no file name given, matches search term from standard input
Pwd --> prints present working directory
Mv --> It moves multiple files in a directory. It makes a new file and copy contents to destination file when two files are given in argument.
cat --> displays the content of a file or multiple files in the terminal.
Chmod --> changes the permission of file or directory given a octal representation of permissions.
The shell also runs builtin binaries like ps, pmap, etc of a command line