Shell Beginner (iii) pass the argument

One

Script code: test.sh

"Shell passed argument instance!" ";  "file name executed: $";  "The first parameter is: $ $";  "The second parameter is: $";  "The third parameter is: $ $";

Execute the file name:./test.  SH The first parameter is:1 the  second parameter is:2 the  third parameter is:3

The

parameter handling	description
$#	The number of arguments passed to the script /td>
$*	Displays all parameters passed to the script in a single string. If "$*" is enclosed in "", all parameters are output in the form "$ $ $n".
$$	The current process ID number for the script to run
$!	ID number of the last process running in the background
[email protected]	is the same as $*, but is used with quotation marks and returns each parameter in quotation marks. such as "[Email protected]" "" "in the case, with" $ "" $ "... All parameters are output in the form "$n".
$-	Displays the current options that the shell uses, as is the SET command function.
$?	displays the exit status of the last command. 0 means there is no error, and any other value indicates an error.

Shell Beginner (iii) pass the argument