Day 2 : 90Days of DevOps Challenge

Basic Linux commands:

Listing commands -

• ls --> The ls command in Linux shows you the files and folders in a directory. It's like looking at what's inside a folder on your computer.

  

• ls -l --> Using ls -l in Linux gives you a detailed list of files and folders, showing extra information like permissions, file size, owner, and more.

  

• ls -a --> Using ls -a in Linux displays all files, including hidden ones starting with a dot, in a directory.

  

• ls *.sh --> Using ls *.sh in Linux shows files with a '.sh' file extension, often shell scripts, in a directory.

  

• ls -i --> Using ls -i in Linux reveals the unique index numbers (inodes) of files in a directory, useful for technical file management.

  

• ls -d */ --> Using ls -d */ command in Linux lists only directories (folders) within a directory. It helps you see the names of subdirectories without showing their contents, making it useful for directory navigation.

  

Directory commands -

• mkdir [directory_name] --> Using mkdir in Linux makes new folders for organizing and storing files.

  

• pwd --> Using pwd in Linux shows your current directory, It shows the full path to your current location within the file system, so you know where you are in the system.

  

• cd [directory_path] --> Using cd in Linux helps you switch to different folders, making it easy to access files and directories.

  

• cd ~ --> The cd ~ command in Linux takes you to your home directory. It's like going back to your personal folder where you usually start when you open a terminal or login to your computer.

  

• cd - --> Using cd - in Linux takes you back to where you were before, like a rewind button for directories.

  

• cd .. --> Using cd .. in Linux change your current directory to the parent directory or take you one step back to the previous directory.

  

• cd ../.. --> Using cd ../.. in Linux change your current directory to the grandparent directory or change your directory to two levels back.

  

• mkdir -p /path/to/parent/directory/newdirectory --> Using the mkdir command in Linux, you can specify the full path along with the -p option. Replace /path/to/parent/directory/newdirectory with the actual path and name of the nested directory you want to create. The -p option ensures that any intermediate directories in the path that don't exist will also be created.