Simple Shell

This is a simple implementation of the UNIX shell (/bin/sh). This is implemented as part of the ALX SE Low-level programming & Algorithm group project.

Build

$ make
# or
$ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c -o hsh

Run

Interactive

$ ./hsh

Non-interactive

$ echo "ls" | ./hsh

Features/TODO

• Handle the PATH
• Implement the exit built-in, that exits the shell
  • Usage: exit status, where status is an integer used to exit the shell
• Implement the env built-in, that prints the current environment
• Implement the setenv and unsetenv builtin commands
• Implement the builtin command cd
• Handle the commands separator ;
• Handle the && and || shell logical operators
• Implement the alias builtin command
• Handle variables replacement
  • Handle the $? variable
  • Handle the $$ variable
• Handle comments (#)
• Handle file as input, i.e. ./hsh file

Contributors

Made with contrib.rocks.

• Noah Cheptoo
• Chiemeka Onyeabo