tldr/pages/windows/if.md

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}})