need Unix script to sort

Hi i have a file like this

oprvdw   vrc002093j.ksh
oprvdw   vrc002092j.ksh
oprvrc    vrc045016j.ksh
oprvrc    vrc055141j.ksh
svemietl  bdw0231185.sh
svemietl  bdw0231145.sh

and i need a script which dispalys in below format:

oprvdw :
vrc002093j.ksh
vrc002092j.ksh
oprvrc :
vrc045016j.ksh
vrc055141j.ksh
svemietl :
bdw0231185.sh
bdw0231145.sh

Plz help me out :slight_smile:

edit by scottn: This could be easily continued in your other post.