PATH=/usr/stsci/ssbdev/bin:/your/other/path
c=/grp/hst/cdbs
cracscomp=/grp/hst/cdbs/comp/acs/
crotacomp=/grp/hst/cdbs/comp/ota/
jref=/grp/hst/cdbs/jref/
mtab=/grp/hst/cdbs/mtab/
nref=/grp/hst/cdbs/nref/
ntab=/grp/hst/cdbs/ntab/
oref=/grp/hst/cdbs/oref/
uref=/grp/hst/cdbs/uref/
