Dear Adarsh Babu Kalepalli,
you should not flag your postings with a BUG marker if you simply domn't understand how to use the tools. Please do this only when you are really sure there is a misbehaviour.
In message CAJgxa7cv2GiQpS3HwMgC=uAN88Z0KM5b7Frei_gEik1xC=nqyg@mail.gmail.com you wrote:
'env exists env_varName' does not display the existance status of 'env_varName' environment variable.
Which part of the documention states that it should _display_ such a status?
env exists name - tests for existence of variable
This says it "tests", but it does say nothing obout outputting any such information. The command to output such information is "env print".
=> printenv ver ver=U-Boot 2019.10 (Oct 14 2019 - 00:47:50 -0700) => env exists ver =>
What is the expected Output and where is the result updated??
Above behaviour is absolutely correct. The command returns a proper status which can be used in conditionals etc., for example:
U-Boot> env exists foo ; echo RC=$? RC=1 U-Boot> if env exists bootdelay ; then echo BOOTDELAY exists ; else echo BOOTDELAY does not exist ; fi BOOTDELAY exists U-Boot> if env exists bootdelay ; then echo BOOTDELAZ exists ; else echo BOOTDELAZ does not exist ; fi BOOTDELAZ exists U-Boot> env exists bootdelay && printenv bootdelay bootdelay=3
There is no bug.
Best regards,
Wolfgang Denk