term% cat index.txt SECONDS(1) General Commands Manual SECONDS(1)
NAME
seconds - convert human-readable date (and time) to seconds since epoch
SYNOPSIS
seconds date ...
DESCRIPTION
Seconds prints the number of seconds since 1 Jan 1970 corresponding to
one or more human-readable dates. Each date must be one argument; it
will usually be necessary to enclose it in quotes.
Seconds accepts a somewhat wider range of input than just output from
date(1). The main requirement is that the date must be fully speci‐
fied, with a day of month, month and year in any order. The month must
be an English name (or abbreviation), not a number, and the year must
contain 4 digits. Unambiguous time-zone names are understood (i.e.,
not or time zones may be written as ±hhmm. Case is ignored.
EXAMPLES
Print the names of all files under modified since the start of 23 May
2011.
du -ta | awk '$1 >= '^‘{seconds '23 may 2011'}^' {print $2}'
SEE ALSO
date(1), du(1), mtime(1), ctime(2)
BUGS
All-numeric dates, popular in the USA, are simply ambiguous, more so if
the year is truncated to 2 digits.
SECONDS(1)