Linux-ls command

-a displays all files and directories (LS default starts the filename or directory name as ".") As hidden files, will not be listed)-l In addition to the file name, but also the file type, permissions, owners, file size and other information detailed list-H with "K", "M", "G" to show the size of files and directories. -r Displays the file in reverse order (originally in alphabetical order)-T lists the files in the order in which they were established-A with-a, but does not list "." (current directory) and ".." (parent directory)-F adds a symbol after the listed file name, for example, the executable file is added "*", the directory is added "/"-R if the directory has files, the following files are also listed in sequence

Linux-ls command