Day 2 Task: 2/90 days Devops

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

1)=>Basic linux commands

Listing commands

ls option_flag arguments --> list the sub directories and files avaiable in the present directory

Examples:

• 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 .. --> change directory to one step back.
• cd ../.. --> Change directory to 2 levels back.
• mkdir directoryName --> to make a directory in a specific location

2)=>Check your present working directory.

command used pwd (i.e Present working directory)

┌──(kali?kali)-[~]

└─$ pwd

/home/kali

┌──(kali?kali)-[~]

└─$

3)=>List all the files or directories including hidden files.

command used ls -all

┌──(kali?kali)-[~]

└─$ ls -all

total 132

drwx------ 15 kali kali 4096 Feb 20 00:23 .

drwxr-xr-x 3 root root 4096 Nov 30 11:56 ..

-rw-r--r-- 1 kali kali 220 Nov 30 11:56 .bash_logout

-rw-r--r-- 1 kali kali 5551 Nov 30 11:56 .bashrc

-rw-r--r-- 1 kali kali 3526 Nov 30 11:56 .bashrc.original

drwxr-xr-x 7 kali kali 4096 Feb 20 00:22 .cache

drwxr-xr-x 12 kali kali 4096 Feb 19 21:52 .config

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Desktop

-rw-r--r-- 1 kali kali 35 Feb 19 21:52 .dmrc

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Documents

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Downloads

-rw-r--r-- 1 kali kali 11759 Nov 30 11:56 .face

lrwxrwxrwx 1 kali kali 5 Nov 30 11:56 .face.icon -> .face

drwx------ 3 kali kali 4096 Feb 19 21:52 .gnupg

-rw------- 1 kali kali 0 Feb 19 21:52 .ICEauthority

drwxr-xr-x 3 kali kali 4096 Nov 30 11:56 .java

drwxr-xr-x 4 kali kali 4096 Feb 19 21:52 .local

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Music

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Pictures

-rw-r--r-- 1 kali kali 807 Nov 30 11:56 .profile

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Public

-rw-r--r-- 1 kali kali 0 Feb 19 21:54 .sudo_as_admin_successful

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Templates

drwxr-xr-x 2 kali kali 4096 Feb 19 21:52 Videos

-rw------- 1 kali kali 49 Feb 20 00:22 .Xauthority

-rw------- 1 kali kali 4465 Feb 20 00:22 .xsession-errors

-rw------- 1 kali kali 4517 Feb 19 21:52 .xsession-errors.old

-rw------- 1 kali kali 84 Feb 19 21:55 .zsh_history

-rw-r--r-- 1 kali kali 10868 Nov 30 11:56 .zshrc

4)=>Create a nested directory A/B/C/D/E

mkdir -p A/B/C/D/E

output:

┌──(kali?kali)-[~]

└─$ tree A

A

└── B

└── C

└── D

└── E

5 directories, 0 files