Windows batch scripting notes

• pass all arguments:

  java -jar app.jar %*

• logical AND in IF conditionals

  IF %age% geq 18 (
      IF %age% leq 68 (
          SET class=working
      )
  )
  

  IF %age% geq 0 IF %age% leq 18 SET class=children
  

• logical OR in IF conditionals

  SET children_or_elderly=F
  IF %age% leq 18 set children_or_elderly=T
  IF %age% geq 60 set children_or_elderly=T
  IF "%children_or_elderly%"=="T" (
      ECHO kids or retired
  )
  

• Test if the argument exists

  IF [%1] == [] ECHO No arguments

• Count number of arguments

  SET nbArgs=0
  FOR %%x IN (%*) DO SET /A nbArgs+=1
  ECHO %nbArgs%
  

• Check if file exists

  IF EXIST C:\TEST\FILE1.TXT ECHO exists
  IF NOT EXIST C:\FILE2.TXT ECHO not exist
  

see also

• Guide to Windows Batch Scripting