"ls" - The "ls" command is used to list the files and directories in a directory.
"cd" - The "cd" command is used to change the current working directory.
"pwd" - The "pwd" command is used to display the current working directory.
"mkdir" - The "mkdir" command is used to create a new directory.
"rm" - The "rm" command is used to delete files and directories.
"cp" - The "cp" command is used to copy files and directories.
"mv" - The "mv" command is used to move or rename files and directories.
"cat" - The "cat" command is used to concatenate and display the contents of files.
"grep" - The "grep" command is used to search for a pattern in a file or input.
"chmod" - The "chmod" command is used to change the permissions of files and directories.
These commands form the basic building blocks for using and navigating the Linux terminal. With practice and experience, you can use these commands in combination with other tools and options to perform more advanced tasks.