$ export
FOO2
FOO

$ export
export FOO2='as  df
  asdk=fja:
asd=fa
asdf'
export FOO='sjfkasjfd  kjasdf:
   asdkj=fkajdsf:
       :askjfkajsf=asdfkj:
   safdkj'
$ printenv | sed -n l
FOO2=astdf$
  asdk=fja:$
asd=fa$
asdf$
FOO=sjfkasjfd  kjasdf:$
   asdkj=fkajdsf:$
t:askjfkajsf=asdfkj:$
   safdkj$