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

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