shift command

Shifts the contents of the command line argument variables.

This command shifts the contents of the special variables containing the script arguments “to the left”, so the value of $arg0 is thrown away, $arg1 becomes $arg0, $arg2 becomes $arg1, and so on.

This lets you process arguments in a loop, by examining $arg0, then using shift.

while ($arg0 != "") echo Next argument is $arg0 shift end 

When executing a script file (script.cmd), with the command line "script.cmd a b c d", we have $argc = 5, $arg0 = script.cmd, $arg1 = a, $arg2 = b, $arg3 = c, $arg4 = d. After the shift command, $argc = 4, $arg0 = a, $arg1 = b, $arg2 = c, $arg3 = d.