[Bash] echo command

The echo command is used to display a line of text or string that is passed as an argument. It's one of the most basic and frequently used commands in Bash scripting.

echo [option] [string]


 

Printing text to the terminal:

echo "Hello, World!"

Output:

Hello, World!

 

Printing the value of a variable:

NAME="Alice"
echo "Hello, $NAME!"

Output:

Hello, Alice!

 

 

Using escape sequences:

 

echo -e "Line 1\nLine 2"

 

Output:

Line 1
Line 2

 

Suppressing the trailing newline:

echo -n "Hello, World!"

 

Example: print the following text exactly as it is, including the double quotes and a tab space between the two lines

"This is line 1"    "This is line 2"

 

Answer: echo -e "\"This is line 1\"\t\"This is line 2\""