Windows Scripting

directory of current script

change to the directory of the executed script:

chdir /D %~dp0

The /D allows to change drives too.

functions

@echo off
echo 1
call :func_1 2
call :func_1 3
echo 4
exit /B

:func_1
echo %1 (called in a function)
exit /B 0

Output:

>test
1
2 (called in a function)
3 (called in a function)
4

parameters

• Parameters to a script are %1 to %9
• %0 is the call and should contain the script name
• %10 does not exist
• %* "is" all parameters, even if there are 15
• if you want to have more than 9 parameters, google for shift or use something like

FOR %%A IN (%*) DO (
  echo xxx %%A xxx
)

Output:

>test 1 2 3 4 5 6 7 8 9 10 11 12 13
x 1 x
x 2 x
x 3 x
x 4 x
x 5 x
x 6 x
x 7 x
x 8 x
x 9 x
x 10 x
x 11 x
x 12 x
x 13 x

test for parameters

@echo off

if [%1]==[] (
  echo Parameter 1 missing!
) else (
  echo Paramater 1 found: %1
)

• '[' and ']' around "%1" are just for the case it is empty. You can use anything you want:

 if xx%1xx==xxxx (

• you need a space between "[]" and '(' in the if condition
• the "(" must be on the same line as the if
• the ") else (" can not be on different lines