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=n...@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
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
You don't need a weatherman to know which way the wind blows.
- Bob Dylan
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