This is the script discussed in my Linux timekeeping essay, in the "Literary" section of my http://www.metascientia.com.
The following is a sample timelog, ready for summing up at week's end:
2003B_WK02 (2003-05-18 TO 2003-05-24)
CHURC | MATPH AS-L0 AS-HI | ASTVO ESTBK | MAINT $LING $$$$$ || TOTL+
=======================================================================
SUN 00h04 | 01h57 | | || 03h01
MON 00h19 | 01h40 | | 02h07 00h03 || 06h39
TUE 00h12 | 02h08 | | 02h00 00h28 || 08h10
WED 00h18 | 01h28 | | 00h42 00h21 || 05h09
THU 00h19 | 00h15 00h50 | | 00h35 03h04 || 07h23
FRI 00h26 | 00h41 07h12 | | || 08h19
SAT 00h12 | 07h09 | | 01h15 || 08h36
=======================================================================
TOT | | | ||
The following is an xterm session with this script,
under the assumption that the timelog is the file
~/t,
and that the script is in the current working directory,
in a file named XNNN____do_weekly_totals.pl:
bash-2.05a$ ./XNNN____do_weekly_totals.pl < ~/t TOT 01h50 | 06h12 17h08 00h00 | 00h00 00h00 | 01h50 07h53 00h52 || bash-2.05a$
The script itself is here.