On Tue, Oct 22, 2013 at 07:07:34PM -0500, Andrew Ruder wrote: > env exists is a way to test (in hush) if an environment variable > exists. A workaround existed using printenv but this new command > doesn't require all the stdout/stderr redirection to prevent > printing information to the screen. > > Example: > $ set testexists 1 > $ env exists testexists && echo "yes" > yes > $ env exists testexists || echo "no" > $ set testexists > $ env exists testexists && echo "yes" > $ env exists testexists || echo "no" > no > $ > > Signed-off-by: Andrew Ruder <[email protected]>
Applied to u-boot/master, thanks! -- Tom
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