& Quot; Disable & quot; Linux terminal output echo-Linux general technology-Linux programming and kernel information. For details, see the following. The Termios structure is a standard interface defined in the POSIX specification. You can control the terminal interface by setting the data structure value of the termios type and calling related functions.
The output ECHO of the control terminal mainly uses the macro ECHO of c_lflag available in "Local Mode". The ECHO macro is defined as: enable the local ECHO function of input characters.
The most common application of this function is to control the echo of the input password. For example, the password entered during logon to MySQL through sudo/etc/** is not displayed.
The definition of the termios structure is included in the termios. h header file. You can view the Code directly:
