if

Performs conditional processing in batch scripts. More information: https://learn.microsoft.com/windows-server/administration/windows-commands/if.

• Execute the specified commands if the condition is true:
  if {{condition}} ({{echo Condition is true}})
• Execute the specified commands if the condition is false:
  if not {{condition}} ({{echo Condition is true}})
• Execute the first specified commands if the condition is true otherwise execute the second specified commands:
  if {{condition}} ({{echo Condition is true}}) else ({{echo Condition is false}})
• Check whether %errorlevel% is greater than or equal to the specified exit code:
  if errorlevel {{2}} ({{echo Condition is true}})
• Check whether two strings are equal:
  if %{{variable}}% == {{string}} ({{echo Condition is true}})
• Check whether two strings are equal without respecting letter case:
  if /i %{{variable}}% == {{string}} ({{echo Condition is true}})
• Check whether a file exist:
  if exist {{path\to\file}} ({{echo Condition is true}})