13 | less command

Linux Command Line Tutorial

In this video, we will learn how to use less command. less is a command-line utility that displays the content of a file or a command output, one page at a time. The less command is mostly used for opening large files.

The general syntax for using less command is:

less [options] filename

It is also possible to use less with other commands output.

ls /etc | less

When opening a file that is too large to fit in one page, you will see the colon at the bottom of the screen. What makes less more appealing is its ease of file navigation.

Navigation Commands

Command	Output
f or space bar	next page
j, down key or enter	next line
k or up key	previous line
b	previous page
G	end of the file
g	start of the file
[n]G	goes to n^th line
/[pattern]	top-down search
?[pattern]	bottom-up search
n	next search result
N	previous search result

Navigation commands

Options

Option	Effect
-N	show line numbers
-X	preserve screen content after exiting less
+F	watch out for changes being made to the file

Options for less command

Thank you 🙂

12 | touch command

Linux Command Line Tutorial

In this video, we will learn how to use touch command. The main purpose of this command is to change file access and modification time but it can be used to create a new file. In simple terms, it is used to change the timestamp of a given file.

touch can create a new file too. I find it much simpler to create a new file using touch. It is possible to create a file with any file extension. Moreover, you can create multiple files with just one command.

Remember you can always type man touch to learn more about the command.

We will also learn about some flags along with touch command:

-t = pass in custom timestamp
-a = just change access timestamp
-m = just change the modified timestamp
-r = copy timestamp from another file

Thank You!

11 | stat command

Linux Command Line Tutorial

In this video we will learn how to use stat command. stat is a command-line utility that displays detailed information about given files or file system. In simple words stat is used to display file information or properties.

Remeber you can always type man stat to learn more about the command.

We will also learn about some flags along with stat command:

-f = this flag is used for formatting custom output

Thank you 🙂

https://youtu.be/AAGOplby0dw

10 | alias | unalias

Linux Command Line Tutorial

In this video we will learn how to use alias and unalias command. alias are like custom shortcuts used to represent a command executed with or without custom options. You can save yourself some time by creating aliases for your most used commands.

Whereas unalias is used to remove the shortcut which was initially created. Pretty simle!

Thank you 🙂

Linux Command Line Tutorial

Youtube Playlist

Hello, I’m Yash. Sole programmer at planetvearcity – a place where programmers come to learn, build, and grow.

Linux is a computer operating system. There are two kinds of user interface. One is a Graphical User Interface(GUI) and another one is Command Line Interface(CLI). We all know how to use a GUI. GUI is easy to use, so why bother learning CLI?

One word, Speed! You can do things way faster with CLI than you will ever be able to do with GUI. It is possible to create tens of thousands of folders in few seconds with one simple shell script.

We will be starting with basic concepts such as ls, cd, mkdir and we will go all the way up-to nano editor.

It is going to be an amazing journey all along. I promise you will learn a ton and enjoy all in one playlist.

Linux Command Line Tutorial Playlist

8 | cp command

Linux Command Line Tutorial

In this video we will learn how to use cp command. cp stands for copy.cp is used to create copy of file and folder. It is similar to copy and pasting in Graphical User Interface.

Remeber you can always type man cp to learn more about the command.

We will also learn about some flags along with cp command:

-i
-r
-v

Thank you 🙂

7 | rm and rmdir

Linux Command Line Tutorial

In this video we will learn how to use rm and rmdir commands. rm stands for remove and rmdir stands for remove directory.

We will also be looking at some of the flags which can be useful along with these commands.

Flags we will learn to use are:

rmdir:
-p

rm:
-r

Thank you 🙂

6 | > and >> command

Linux Command Line Tutorial

angle bracket “>” is used for redirection of output from terminal to a specific file. > can be used along with any command which displays output on the terminal.

“>>” is used to append output to preexisting file.

If you have any requests for future videos you can POST them in the comments or mail it to me.

Thank you 🙂

5 | cat command

Linux Command Line Tutorial

In this video we will learn how to use cat on linux terminal. cat means concatenate and print files. We can use cat command to display content of a file. It can also be used to combine files. cat can also be used to create new files.

Flags:

-n : display line number including line breaks

-b : display line number excluding line breaks

-s : will squeeze unnecessary line breaks(leave only one line break if exist)

-e : show $ symbol at end of each line break

If you have any requests for future videos you can POST them in comments or mail it to me.

Thank you 🙂

4 | mkdir command

Linux Command Line Tutorial

mkdir command is used to make directory inside present working directory.

Flag:

-p : this flag is used to create tree structure directory(Example: /test/one/two/three)

If you have any requests for future videos you can POST them in comments or mail it to me.

Thank you 🙂