What is the meaning of "\" and "--" in the command line?

What does "\" and "--" in the command line generally mean?-Linux general technology-Linux programming and kernel information. The following is a detailed description. \ If the row ends, it indicates that the row is not over yet. The following line indicates that the row ends with the row.

-- Is the start of the option. Generally, the option of a letter starts with-, and the option of multiple letters starts.

"\" May be omitted if it is a carriage return without line breaks, but it cannot be omitted if it is another character.

"\" Tells the system to follow the character as the original intention, not a command.

For example, if a file name contains a space, add "\" before the space.