Day 2 Task: Basics Linux command

 Day 2 Task: Basics Linux command

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

Ans:-

1. "pwd" is command to check present working directory on linux machine.

2. "ls -la" is command to list all the files or directories including hidden files.

in above command,

"-l" is use for list the files and directories in long list format with extra information and

"a" is use for list all including hidden files and directory in linux machine.

3. To create a nested directory use following command :-

"mkdir -p A/B/C/D/E" 

"-p" stands for "no error if existing, make parent directories as needed"

showing the nested directory in linux machine use "tree" command..

Listing commands

- ls -l --> list the files and directories in long list format with extra information

- ls -a --> list all including hidden files and directory

- ls *.sh``` --> list all the files having .sh extension.

- ls -i ``` --> list the files and directories with index numbers inodes

- ls -d */``` --> list only directories.(we can also specify a pattern)

Directoy commands

pwd --> print work directory. Gives the present working directory.

- cd path_to_directory--> change directory to the provided path

- cd ~  or just  cd  --> change directory to the home directory

-  cd - --> Go to the last working directory.

-  cd..  --> chnage directory to one step back.

-  cd ../..--> Change directory to 2 levels back.

-  mkdir directoryName --> to make a directory in a specific location

Examples:

mkdir newFolder              # make a new folder 'newFolder'

mkdir .NewFolder              # make a hidden directory (also . before a file to make it hidden)

mkdir A B C D                  #make multiple directories at the same time

mkdir /home/user/Mydirectory   # make a new folder in a specific location

mkdir -p  A/B/C/D              # make a nested directory