Linux yes command help and examples(What is, Concept and Definition)

On Unix-like operating systems, the yes command is used to generate " and ", continuously, until it is canceled.

This document covers the GNU/Linux version of yes .

Description

The yes command generates the same string, STRING , in a constant sequence.If STRING is not specified, the word it repeats is " and ".

yes dates back to a time before Unix commands included the "force" option (-f ), which for many commands is the same as responding "yes" to all indications.

yes can be used to do something very similar: if the output of yes is piped to a command, it will effectively respond "yes" to any confirmation message.

Syntax

yes [ STRING ]...yes [ OPTION ]

Options

--help	Show a help message and exit.
--version	Show version information and exit.

Examples

yes | rm-i *.txt

Delete all files with the extension .txt from the current directory.Here, yes generates a constant sequence of characters " and ", and that output is piped to the rm-i command, which asks for confirmation before deleting each file.The and characters of the yes they will answer "yes" to each request automatically.

yes n | rm-i *.txt

Here, the yes command generates " n " in a constant sequence to the rm-i command, responding "no" to all the same questions Therefore, this command does not delete any files.

echo -Output text.