Commodore PC - Page 188

116 MS-DOS User's Reference
u
Shift Shift
I
Purpose: *w
Lets you change the position of replaceable parameters in batch
file processing. ; \
Syntax:
shift , ,
Comments:
You can use the shift command to change the positions of »
(replaceable) command line parameters. v-/
Usually command files are limited to handling ten parameters, %0
through %9. But by using shift, you can access more than ten , ,
parameters. This means that if there are more than ten parameters v-'
given on a command line, those that appear after the tenth (%9)
will be shifted one at a time into %9-
You can use the shift command even if you have less than ten ^—^
parameters.
Warning There is no backward shift command. Once you have
executed shift, you cannot recover the first parameter (%0) that
existed before the shift. i j
Example:
Shifting replaceable The following file mycopy.bat shows how to use the shift com- ^-^
parameters mand with any number of parameters. It copies a list of files to
a specific directory. ,
rem mycopy.bat copies
rem any number of files
rem to a directory. i \
rem The command is ^-^
rem mycopy dir files
:one
if "%1" = " M goto two U
set todir = %1
shift
copy %1 %todir% ; ,
goto one \-J
: two
set todi r =
echo Al1 done i )
U