Shell Implementation in C By Rutwik Reddy

Introduction

This is a basic shell implemented using syscalls and C language.

How to Run

• Install make (if not installed) by running the command sudo apt-get install make

• Type the command make run

• Run the shell ./run

Features of this Shell

1. cd command

   • cd
   • cd ~
   • cd .
   • cd ..
   • cd

2. pwd command

   • pwd

3. echo command

   • echo "" (Bonus Marks)
   • echo '' (Bonus Marks)
   • echo

4. ls command

   • ls
   • ls -l
   • ls -a
   • ls -al and its variations

5. System commands

   • All commands work for foreground and background processes
   • PID is returned when we kill the background process

6. pinfo command(Prints information related to the process)

   • pinfo
   • pinfo

Bonus:-

7. remindme command(Prints a message in the shell after a specifed duration)

   • remindme ""

8. clock command(Prints the time of the machine every seconds)

   • clock -t