The echo command is used to display a line of text on the terminal. You can also use the echo command to write text to a file by providing the string after the echo command and redirecting to the file.
Syntax
The syntax of the echo command is:
# echo {string}
echo Command Examples
1. To echo the string on std op device:
# echo "Hi there"
2. To skip printing the trailing new line:
# echo -n "Hi There"
3. To enable the interpretation of backslash escapes (****):
# echo -e "Hi\a There"
| Operator | Interpretation |
|---|---|
| \\ | backslash |
| \a | alert (BEL) |
| \b | backspace |
| \c | produce no further output |
| \e | escape |
| \f | form feed |
| \n | new line |
| \r | carriage return |
| \t | horizontal tab |
| \v | vertical tab |
| \0NNN | byte with octal value NNN (1 to 3 digits) |
| \xHH | byte with hexadecimal value HH (1 to 2 digits) |
4. To disable interpretation of backslash escapes:
# echo -E "Hi\! There"
5. To display the help:
# echo --help
6. To display the version:
# echo --version