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

how to run the shell:

• fork the repo from top right corner of the screen
• Download/Clone the forked repo
• Run make in the terminal to start the shell process
• Try out any of the above commands in the shell process
• Use Ctrl + C to exit the shell process