How to replace file massively?

Shell Programming and Scripting
1

Hi Gurus,

I need to change a large amout of file name's.
for example:
current file name:

file_ABCDE_sufix.txt

I need to change them as
file_FGHIGHKE_sufix.txt.

Is there any way I can change them with script.

Thanks in advance

2 
IFS="_"

for FILE in file_abcde_*
do
        set -- $FILE
        echo mv "$FILE" "${1}_FGHIGHKE_${3}"
done

Remove the echo once you've tested and seen whether it works for you.