tinysh

A basic unix shell

Build and run

make all
./smallsh

Examples

Basics

: # this is comment
:
: # list directory contents
: ls
: # redirect to file
: ls > some_file.txt
:
: # go home
: cd 
: # travel somewhere
: cd [some directory]
:
: # print working directory
: pwd
: 

Supports most other basic commands (cp, mv, cat, etc.)

Signals and background processes

: # run some process
: sleep 10
: # CTRL + C sends SIGINT signal to kill bg process
terminated by signal 2
:
: # run same process but in the background
: sleep 10 &
background pid is [SOME PID]
: # get running processes
: ps
: # kill some background process
: kill -15 [SOME PID]
background pid [SOME PID] is done: terminated by signal 15
:
: # CTRL + Z enters foreground only mode
Entering foreground-only mode (& is now ignored)