seconds

NAME

SYNOPSIS

seconds MM/DD/YYYYY hh:mm:ss

AVAILABILITY

DESCRIPTION

seconds is the inverse function of the timer command.

In conjunction with the timer command, the seconds command can be used to do some date and time calculation.

Use timer to evaluate the seconds since the Epoch for the current moment.

OPTIONS

-h

usage message.

YYYYY-MM-DD hh:mm:ss

date and time in format "Year-Month-Day Hour:Minute:Second".

ENVIRONMENT

EXIT STATUS

0

no error.

4

usage displayed.

FILES

EXAMPLES

1) print seconds since Epoch for Sun Mar 18 23:47:05 CET 2007

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: seconds 2007-03-18 23:47:05 

1174258025

2) print date for 1174258025 since the Epoch

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: timer 1174258025 

2007-03-18 23:47:05

3) print seconds since the Epoch of current point in time

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: timer 

1174258402

4) print the date and time when a 72 hour countdown that started at February 1st 2007 at 12:00:00 will end.

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: begin=`seconds 2007-02-01 12:00:00`

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: end=`expr $begin + 72 \* 60 \* 60` 

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: timer $end

2007-02-04 12:00:00

5) same as example 4, but in an one-line statement.

[ /home/mzv7t0 ]
[ mzv7t0@rh7mzv7t001 ][ksh]: \
  timer `expr \`seconds 2007-02-01 12:00:00\` + 72 \* 60 \* 60` 

2007-02-04 12:00:00

SEE ALSO

NOTES

BUGS

AUTHOR

COPYRIGHT

This is free software; see edrc/doc/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.