LINUX SHELL : LEZHELL

Running the Shell

1)make or 2)make run or 3)./lezhell exit the shell.

What and all shell can do

This shell is a prototype linux shell many functions are still not working:

• pwd : prints the present working directory.

• cd : changes the directory based on the flags given.

  • cd
    cd .
    cd ..
    cd ~
    cd <directory>
    cd <full path>

• ls : lists the contents of a directory/directories seprated by space based on the flags given in any given order.

  • ls
    ls -a
    ls -l
    ls -al
    ls -la
    ls <directory>
    
    

• echo : echo values on prototype terminal itself

  • echo <"LEZHELL">

• pinfo : lists the details of a particular process (may be based on a process ID that is given).

  • pinfo
    pinfo <pid>

• Foreground Processes: terminal can be used only after the Process Completion. Example:

  • firefox 

• Background Processes: Processes that run simultaneuosly without disturbing the terminal. Example:

  • gedit &

• jobs : prints all the background jobs in alphabatical order

  • jobs

• fg : brings a running or a stopped background job with given job number to foreground.

  • fg 1

• bg : changes a stopped background job to a running background job.

  • bg 1