- environment-variable-bound? NAMEprocedure
Does the environment variable NAME exist with a non-null value?
NAME is a string.
FOO=1 BAR= csi -q -R posix-utils #;1> (environment-variable-bound? "FOO") #t #;2> (environment-variable-bound? "BAR") #f
Does the environment variable NAME exist with a non-null value?
NAME is a string.
FOO=1 BAR= csi -q -R posix-utils #;1> (environment-variable-bound? "FOO") #t #;2> (environment-variable-bound? "BAR") #f