Shell Script Parameters

A bash shell script have parameters. These parameters start from $1 to $9.

When we pass arguments into the command line interface, a positional parameter is assigned to these arguments through the shell.

The first argument is assigned as $1, second argument is assigned as $2 and so on…

If there are more than 9 arguments, then tenth or onwards arguments can’t be assigned as $10 or $11.

You have to either process or save the $1 parameter, then with the help of shift command drop parameter 1 and move all other arguments down by one. It will make $10 as $9, $9 as $8 and so on.