Co robi ECHO użycie. Konsola a command built into bash . The following character sequences have.

Czy przydatne?

Polecenie echo

Wykonanie, użycie: Send (echo) the input string to standard output. This is the /bin/echo command. echo also exists as a command built into bash. The following character sequences have special meanings:

a

Alert (bell).

 

Backspace.

 c

Suppress trailing newline.

Form feed.

Newline.

Carriage return.

Horizontal tab.

 v

Vertical tab.

 \

Literal backslash.

 nnn

The octal character whose ASCII code is nnn

Opcje wykonania echo w konsoli

-e

Enable character sequences with special meaning. (In some versions, this option is not required in order to make the sequences work.)

 -E

Disable character sequences with special meaning.

 -n

Suppress printing of newline after text.

 --help

Print help message and then exit.

 --version

Print version information and then exit.

Przykłady echo działanie w Słownik polecenie E

Przykład ECHO użycie :
Jak użyć Duplicate the sound being sent to the sound device, and send it to a secondary location as well. The file argument specifies where the output stream should go; default is stdout co znaczy.
Przykład ECHO użycie :
Jak użyć Enable printers or printer classes. Part of the CUPS system. More often invoked as accept krzyżówka.
Przykład ECHO użycie :
Jak użyć function and macro names defined in a programming source file . etags generates tags for use by emacs . (ctags produces an equivalent tags file for use with vi .) More than one file may be specified co to jest.
Przykład ECHO użycie :
Jak użyć environment or, if an environment variable is specified, set it to a new value and display the modified environment. If command is specified, execute it under the modified environment słownik.
Przykład ECHO użycie :
Jak użyć environment variables in a shell string or script. When used with no options, copies stdin to stdout, replacing any environment variable string, such as $VARIABLE or ${VARIABLE }, with czym jest.