touch

• Command Function
• Syntax
• Parameter Description
• Usage
• Example
• Output

Command Function

• This command is used to create an empty file in a specified directory.
• If this command is executed to create an existing file, the execution will be successful but the timestamp will not be updated.

Syntax

touch [filename]

Parameter Description

Table 1 Parameters

Usage

• The touch command creates a read-write empty file.

• The touch command creates only one file at a time.

  NOTICE: If you run the touch command to create a file in a path storing important system resources, unexpected results such as a system breakdown may occur. For example, if you run the touch uartdev-0 command in the /dev path, the system may stop responding.

Example

Enter touch file.c.

Output

Figure 1 Creating file.c