Internal commands are executed by the shell and do not exist as a separate binary program. You can find out which of these there are by looking at the 'man' entry for the shell you are using.
External commands can be found in various directories, such as /bin, /usr/bin, etc.
It depends on the shell program you are running in your environment; there are a number of 'internal' commands that are recognized by the shell and do not exist as "commands" on the system anywhere.
Any command that is not internal to the shell would be considered an external command. To find a list of basic external commands, try to do a 'ls /bin', which lists very essential and common external Unix commands.
Look at the 'man' or 'info' entry for your shell to find a list of internal commands.
An internal command would be one that is recognized by the shell and the shell does not have to execute a program to do the command. An example would be the 'alias' command, which creates, removes, or lists aliases in the environment.
An external command would be one that you might find in the /bin directory, such as 'ls'.
Internal commands are executed by the shell itself; it does not need to go outside the program to find and load a program. You can find the internal commands for any shell by looking at the 'man' page for that shell.
Anything not directly interpreted by the shell is an external command, and would have to be found by looking at the $PATH variable of the shell.
For example, 'set' or 'alias' are typically internal commands, whereas commands such as 'ls', 'grep', 'find' are examples of external commands. You can find external commands as filenames in various directories.
Internal commands are commands that are already loaded in the system, It can be executed at any time and are independent. external commands are loaded when the user requests them. Internal commands don't require a separate process to execute them.
Search first in google write internal and extarnal frontiers of sultanate............ got it U r just Dont kn anything and Asking 2 others Wat the hell is thizzxxxx
Command Name - the command to be carried outParameter - object the command should act onSwitch - modifies the way you carry out a command represented by a forward slash (/) and a character e.g. /FExample.:C:\book>Tree /F
Internal ms-dos commands with syntax
Distinguish between internal audit and internal control.
the deleted file if ms dos can be recovered if you use the command mention below immediately,the command is : need External Dos commands and internal dos commands with their meaning
Internal commands are the commands that are executed <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> directly by the shell. These commands will not have a separate process running for each. External commands are the commands that are executed by the kernal. These commands will have a process id running for it. Internal commands are stored in the cmd.exe command interpreter, ex. Dir External commands correspond to a .com or .cmd file, ex.
Oracle 10g's commands are internal; they have nothing to do with what platform it is running on.
they are full benifits
A list of internal/builtin commands is available for each shell environment by looking at the 'man' entry. Anything not listed there is either an alias or an external command.
examples of internal and external validity
That's similar to asking Why not have every song built in to my stereo? There are many different sources for commands, and new ones are coming out all the time.