The SAS system is pretty nice with some things. One is that when you substitution like that in the log then you can click on the replace name, copy and paste into the editor.
The obnoxious files where the column headers exceed 32 characters and have the same first 32 characters are not so nice as SAS will give you VARxx where XX is the column number.
Or when the column heading is repeated. You may have some finding out which of Total, Total12, Total18, Total21 (or more) that you actually want for a given purpose.
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