How to find and replace a text block in a character field

[osolheim]

How can I find a certain text block and replace it with another within a character field in Progress?
Example:
The field contains:
"lpsp -c$FRM/ir1 -dOsl_1f_8000 -s -onb"
I want to find the block "Osl_1f_8000" and replace it with for instance "t003"....

Any ideas??

 

[HelloMike]

DEFINE VARIABLE cText AS CHARACTER NO-UNDO
    INITIAL "lpsp -c$FRM/ir1 -dOsl_1f_8000   -s -onb".

ASSIGN cText = REPLACE(cText,"Osl_1f_8000","t003").