What is shell

• The shell is the Linux command line interpreter. It provides an interface between the user and the kernel and executes programs called commands.

How To Start

• Install an IDE in terminal. I use nano in my terminal
• Basic Command
  • cd chane directory. it's use for enter file directory.
  • touch. This command use for creat file. touch "filename with extension".
  • chmod +x "sheel file name". need to run this command for change the file permission.
  • the run the file use ./"filename with extension".

  Lets Try all above command

  cd Desktop # this one take u in Desktop dir
  touch hello.sh # creat a hello.sh file in Desktop folder. .sh is the sheel extension.
  nano hello.sh # open hello.sh file in your terminal copy class 1 code and save use `ctrl+s` and then use `ctrl+x` for exit
  chmod +x hello.sh #change the file execute permission
  ./hello.sh #print your text

Class 1

Just know how to print text using shell command

Class 2

Learn how do comment in a shell script! and how to use variable in shell

Class 3

Knowing About user input with some manipulate tricks. like take input same line and take hidden input. Use array