Display a line of text.
Echo the STRING(s) to standard output
Basic Usage:
echo text
Examples:
echo hello boys
hello boys
echo "hello boys"
hello boys
If you forget to close " sign:), you can continue to give output.
When you close " sign, you can see echo command's output on screen.
You can send output to a file if you wish.
echo İşlem tamam > abc.txt
This command makes a new abc.txt file if there isn't.
If there is abc.txt file, it removes old content and writes new content.
echo İşlem tamam2 >> abc.txt
This command makes a new abc.txt file if there isn't.
If there is abc.txt file, it adds content to this file's old content.
echo {1,2,3,par}dus
1dus 2dus 3dus pardus
echo {1,2,3}defa;echo pardus
1defa 2defa 3defa
pardus
echo $((4+2))
6
echo $((4-2))
2
echo $((9*2))
18
echo $((14/2))
7
echo $((14/2*3+7))
28
echo -e merhaba '\n'selam
merhaba
selam
You can use '\n' and other characters with -e parameter.
'\n' is new line
echo -e '\0111'
I
The character whose ASCII code is NNN (octal) (for \0NNN). NNN can be 0 to 3 octal digits
echo -e '\0155'
m
echo -e '\x23'
#
The eight-bit character whose value is HH (hexadecimal) (for \xHH). HH can be one or two hex digits
help echo
Display help page.
/bin/echo --version
Display version info.
Above process applied on "GNU bash, version 4.3.11(1)-release (i686-pc-linux-gnu)"
Date of Article: 05.03.2016