Shell Core

[Glavin001]

• [x] Take a line of user input
• [x] Parse line of input into args
• [x] Execute as a single command (ls, whoami, etc)
  • [x] Execute with command args (ls -la is ls with arg -la)

[Glavin001]

This is what I have so far:

MrShell$ make && ./build/mrsh 
mkdir -p build
gcc -Wall -Wextra -o build/mrsh src/mrsh.c
                     ____     __               ___    ___     
 /'\_/`\            /\  _`\  /\ \             /\_ \  /\_ \      
/\      \   _ __    \ \,\L\_\\ \ \___       __\//\ \ \//\ \     
\ \ \__\ \ /\`'__\   \/_\__ \ \ \  _ `\   /'__`\\ \ \  \ \ \    
 \ \ \_/\ \\ \ \/      /\ \L\ \\ \ \ \ \ /\  __/ \_\ \_ \_\ \_  
  \ \_\\ \_\\ \_\      \ `\____\\ \_\ \_\\ \____\/\____\/\____\ 
   \/_/ \/_/ \/_/       \/_____/ \/_/\/_/ \/____/\/____/\/____/ 

    0100110101110010 0101001101101000011001010110110001101100  

                 Created by the Pipe Brothers                  

An extreme shell for people who really know how to pipe.    

=============================================================

MrShell$ ls
LICENSE   Makefile  README.md build     src

MrShell$ pwd
/Users/glavin/Documents/Project Dev/CSCI3431/MrShell

MrShell$ whoami
glavin

MrShell$ hello world
*** ERROR: exec failed

MrShell$ ^C

[Glavin001]

Helpful links:

• execvp - ls: fts_open: No such file or directory
• C Programming — get multiple words in string
• Execute a Program: the execvp() System Call
• fork() and exec()
• pthread synchronized blocking queue
• pthreads in C - a minimal working example

[Glavin001]

• Writing Your Own Shell