Example contents of a file:

001FILE
002FILE
003FILE
099FILE
111FILE

Is it possible to search for [000-111]FILE and still keep the number part of the result in tact? The number portion is a changing variable but the FILE part stays the same. I want to search for all [000-111]FILE and space them out to "001 FILE" "002 FILE" etc.

If I use sed 's/[000-111]FILE/&/g' It will basically replace with the same variable as found in search.

I know how to search for the variable but don't know how to keep a portion of the result. The cut function would be nice but I can't seem to be able to call it in through sed.

Searching for FILE and adding a space is not an option as some of the other contents have the same names and cannot be effected.

Any ideas?