15 Practical Examples of ‘echo’ command in Linux

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echo is one of the most commonly and widely used built-in command for Linux bash and C shells, that typically used in scripting language and batch files to display a line of text/string on standard output or a file.

15 Practical Examples of ‘echo’ command in Linux

echo command examples

The syntax for echo is:

echo [option(s)] [string(s)]

1. Input a line of text and display on standard output

$ echo Tecmint is a community of Linux Nerds 

Outputs the following text:

Tecmint is a community of Linux Nerds 

2. Declare a variable and echo its value. For example, Declare a variable of x and assign its value=10.

$ x=10

echo its value:

$ echo The value of variable x = $x 

The value of variable x = 10 

Note: The ‘-e‘ option in Linux acts as interpretation of escaped characters that are backslashed.

3. Using option ‘/b‘ – backspace with backslash interpretor ‘-e‘ which removes all the spaces in between.

$ echo -e "Tecmint /bis /ba /bcommunity /bof /bLinux /bNerds" 

TecmintisacommunityofLinuxNerds 

4. Using option ‘/n‘ – New line with backspace interpretor ‘-e‘ treats new line from where it is used.

$ echo -e "Tecmint /nis /na /ncommunity /nof /nLinux /nNerds" 

Tecmint 
is 
a 
community 
of 
Linux 
Nerds 

5. Using option ‘/t‘ – horizontal tab with backspace interpretor ‘-e‘ to have horizontal tab spaces.

$ echo -e "Tecmint /tis /ta /tcommunity /tof /tLinux /tNerds" 

Tecmint 	is 	a 	community 	of 	Linux 	Nerds 

6. How about using option new Line ‘/n‘ and horizontal tab ‘/t‘ simultaneously.

$ echo -e "/n/tTecmint /n/tis /n/ta /n/tcommunity /n/tof /n/tLinux /n/tNerds" 

	Tecmint 
	is 
	a 
	community 
	of 
	Linux 
	Nerds 

7. Using option ‘/v‘ – vertical tab with backspace interpretor ‘-e‘ to have vertical tab spaces.

$ echo -e "/vTecmint /vis /va /vcommunity /vof /vLinux /vNerds" 

Tecmint 
        is 
           a 
             community 
                       of 
                          Linux 
                                Nerds 

8. How about using option new Line ‘/n‘ and vertical tab ‘/v‘ simultaneously.

$ echo -e "/n/vTecmint /n/vis /n/va /n/vcommunity /n/vof /n/vLinux /n/vNerds" 


Tecmint 

is 

a 

community 

of 

Linux 

Nerds 

Note: We can double the vertical tab, horizontal tab and new line spacing using the option two times or as many times as required.

9. Using option ‘/r‘ – carriage return with backspace interpretor ‘-e‘ to have specified carriage return in output.

$ echo -e "Tecmint /ris a community of Linux Nerds" 

is a community of Linux Nerds 

10. Using option ‘/c‘ – suppress trailing new line with backspace interpretor ‘-e‘ to continue without emitting new line.

$ echo -e "Tecmint is a community /cof Linux Nerds" 

Tecmint is a community [email protected]:~$ 

11. Omit echoing trailing new line using option ‘-n‘.

$ echo -n "Tecmint is a community of Linux Nerds" 
Tecmint is a community of Linux [email protected]:~/Documents$ 

12. Using option ‘/a‘ – alert return with backspace interpretor ‘-e‘ to have sound alert.

$ echo -e "Tecmint is a community of /aLinux Nerds" 
Tecmint is a community of Linux Nerds

Note: Make sure to check Volume key, before firing.

13. Print all the files/folder using echo command (ls command alternative).

$ echo * 

103.odt 103.pdf 104.odt 104.pdf 105.odt 105.pdf 106.odt 106.pdf 107.odt 107.pdf 108a.odt 108.odt 108.pdf 109.odt 109.pdf 110b.odt 110.odt 110.pdf 111.odt 111.pdf 112.odt 112.pdf 113.odt linux-headers-3.16.0-customkernel_1_amd64.deb linux-image-3.16.0-customkernel_1_amd64.deb network.jpeg 

14. Print files of a specific kind. For example, let’s assume you want to print all ‘.jpeg‘ files, use the following command.

$ echo *.jpeg 

network.jpeg 

15. The echo can be used with redirect operator to output to a file and not standard output.

$ echo "Test Page" > testpage 

## Check Content
[email protected]:~$ cat testpage 
Test Page 
echo Options
 Options  Description
 -n  do not print the trailing newline.
 -e  enable interpretation of backslash escapes.
 /b  backspace
 //  backslash
 /n  new line
 /r  carriage return
 /t  horizontal tab
 /v  vertical tab

That’s all for now and don’t forget to provide us with your valuable feedback in the comments below.

Source: tecmint.com

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