bat file for replacing the digits of of txt file

[danger_end]

hi friends
i want your help how make a bat or vbs file for replacing digits of a txt file

80J 138(AB) 15(CE) 71(BD) 156(CE) 71(AB) 31(DE) 131(CB) 31(BD) 133(AE) 31(DC) 71(BA) 156(DE) 71(AB) 31(CB) 131(DB) 15(CE) 136(AB) 80J


i wana change e to g
d to f
c to e
b to d
a to c
and other is same as
80J 138(cd) 15(eg) 71(df) 156(eg) 71(cd) 31(fg) 131(ed) 31(df) 133(cg) 31(fe) 71(dc) 156(fg) 71(cd) 31(ed) 131(fd) 15(eg) 136(cd) 80J

[foxidrive]

Can you use free third party command line tools for this task?

GnuSED using the transliteration features will make this easy.