yagnasrinath / sbush Goto Github PK

// Authors
Yagna Srinath Reddy, Battula(110010304)
Ravi Chandra, Sadineni(109754581)
Harshavardhan Chowdary, Ellanti(109596321)

Project Level : Preemptive OS(70 marks)

How to execute particular command in our sbush

Setting PATH 

command : setenv PATH path
example : setenv PATH /bin

NOTE : We are supporting only one PATH at time. Cann't prepend or append PATH. Will search only in the PATH pointed by the PATH environment variable.

List Processes

Command : ps

Kill Processes

kill -9 <PID>

Backgroud Processes

Command : command &

example : ls &

Present Working Directory

Command : pwd

Echo command 

Command : echo $PATH

cat command

Command : cat <Binary/FileName/NULL>


Pipe command

How to : <command1> | <command2> | <command3> | <command4>

Sleep command

Command : sleep <seconds>

example : sleep 4

Exit command

Command : exit

Exits the shell

Change Directory

Command : cd <path/../.>

example : cd ..

List Directory

Command : ls [DIRECTORY]

example : ls or ls <DIRECTORY>