.TH BYTEYEARS 1 
.SH NAME
byteyears \- time-space product for file residency
.SH SYNOPSIS
.B byteyears
[
.B \-a
]
[
file
] . . .
.SH DESCRIPTION
.I byteyears
reports the product of the age of each
.I file
in years
and the length in bytes.
Files for which this number is large
may be reasonable candidates for deletion.
If the file is a directory,
.I byteyears
reports (recursively) on everything in that
directory.
If no arguments are given, the current directory is assumed.
If the
.B \-a
option is given, the time since last access
is used instead of the time since last modification.
.PP
Each line of output contains
the number of byte years (rounded to the nearest integer),
the size of the file in bytes, the time last
modified, and the name of the file.
.SH EXAMPLE
.TP
byteyears | sort \-r | sed 10q
List the ten leading candidates in the current directory.