Run directly from the Linux run file

Like Realplay.run.
The installation method is as follows
chmod +x Realplay.run
./realplay.run
Then he will perform the installation, and in the process you may be asked to enter Yes or no
After the installation is ready to use, chmod is actually add permission command. +x indicates that you can perform

chmod [-CFVR] [--help] [--version] Mode file ...

Description: Linux/unix's file invocation permissions are divided into three levels: file owners, groups, and others. The use of chmod can be used to control how files are called by others.

Parameters:
Mode: Permission set string in the following format: [Ugoa ...] [[+-=][RWXX] ...] [,...], where
U represents the owner of the file, G means that the owner of the file belongs to the same group (group), and O indicates that the other person, a means that all three are.
+ indicates an increase in permissions,-represents a cancellation permission, = Represents a unique set of permissions.
R is readable, w means writable, x is executable, x means only if the file is a subdirectory, or the file has been set as executable.
-C: If the file permissions have changed, the change action will be displayed
-F: Do not display an error message if the file permissions cannot be changed
-V: Show details of permission changes
-r: The same permissions change for all files in the current directory and subdirectories (that is, they are changed in a recursive manner)
--HELP: Show Auxiliary Instructions
--version: Display version

Run directly from the Linux run file