myShell

myShell is a simple Unix-like shell written in C that supports several built-in functions, background jobs, listing jobs, pipes, I/O redirection, and environment variables for both built-in functions and executable programs.

Features

• Built-in functions:

  • cd: Change the current directory.
  • exit or quit: Exit the shell.
  • export: Set and manage environment variables.
  • echo: Display messages with support for variable substitution.
  • pwd: Print the current working directory.
  • kill: Send signals to processes.

• Background jobs: You can run commands in the background by appending & to the command.

• Job management: List and manage background jobs.

• Pipes: Execute commands with pipes (e.g., command1 | command2).

• I/O redirection: Redirect input and output for both built-in and external commands.

• Environment variables: Set and use environment variables for your shell sessions.

Building and Running

To build the myShell project, you can use the provided Makefile:

make quash

To run the shell, execute:

./quash or make quash_test

To check for memory leaks using Valgrind, execute:

make quash_valgrind

To clean the executable file:

make clean

Usage

Simply start myShell by running the quash binary. You can enter commands with various features like background execution, pipes, I/O redirection, and environment variables.

Example usage:

$ ./quash
[QUASH]$ export MY_VARIABLE=my_value
[QUASH]$ echo $MY_VARIABLE
my_value
[QUASH]$ ls | grep .txt
file1.txt
file2.txt
[QUASH]$ program1 &
Background job started: [1] 1234 program1 &
[QUASH]$ jobs
[1] 1234 program1 &

Contributors

Bhavik Goplani & Suhaan Syed

License

This project is licensed under the MIT License - see the LICENSE file for details.