cf
utilityThe cf utility reads Unix timestamps at the beginning of lines on stdin and converts them to human-readable form. For example, for the input line:
972499885.784104 #26 131.243.70.68/1899 > 64.55.26.206/ftp start
it will generate:
Oct 25 11:51:25 #26 131.243.70.68/1899 > 64.55.26.206/ftp start
It takes two flags:
Oct 25 11:51:25 2000 #26 131.243.70.68/1899 > 64.55.26.206/ftp start
Without -s, an input like:
131.243.70.68 > 64.55.26.206
generates the output:
Dec 31 16:02:11 > 64.55.26.206
which, needless to say, is not very helpful.
Deficiency: It seems clear that -s should be the default behavior.