Resending this, as the first didn't seem to work.
Everybody else is doing it, so here's a python version.
#!/usr/bin/env python
file_name = "/usr/share/dict/words"
file_id = open(file_name)
lines = file_id.readlines()
file_id.close()
freq_count = {}
for c in 'abcdefghijklmnopqrstuvwxyz':
freq_count[c] = 0
for line in lines:
freq_count[line[0]] += 1
key_value_list = freq_count.items()
value_key_list = [(v,k) for k,v in key_value_list]
value_key_list.sort()
for freq,letter in value_key_list:
print freq,letter
