Linux
Linux came from a Unix family, Linux is a free and open-source software operating system, which Linus Torvalds developed in September 1991.
In 1991, Linus Torvalds was a student at the University of Helsinki, Finland USA.
Today many year pass and Linux become one of the most popular operating systems.
Today 90% fastest Supercomputers out of 500 run on Linux variants including the top 10. And used for Multi-user and Multitasking.
The Linux Architecture
Basic Linux commands
'ls'
This command lists the files and directories in the current directory.
'ls -a'
This command displays the hidden files and the current working directory.
'pwd'
This command displays the current working directory.
'mkdir new_directory'
This command creates a new directory.
'cd'
This command indicates the last working directory.
'cd /path/to/directory'
This command allows you to change to a different directory.
'cd ..'
change the directory to one step back.
'mkdir -p A/B/C/D
make a nested directory
Task: What is the Linux command to
1. Check your present working directory.
2. List all the files or directories including hidden files.
3. Create a nested directory A/B/C/D/E
