BATTERY-GRAPH(1)					      General Commands Manual						  BATTERY-GRAPH(1)

NAME

       battery-graph - Show a graph of the battery charge

SYNOPSIS

       battery-graph [options] [files...]

DESCRIPTION

       Show a graph of the battery charge over time.

       The  files given are assumed to contain battery statistics in the battery-stats(5) format. If no files are specified, the default log files
       will be used.

       The options can be used for displaying a different interval. An interval is defined in terms of a from timestamp,  a  to  timestamp  and  a
       duration. By specifying any two, the third will be calculated automatically. A missing duration will be defaulted to 3 hours.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-').

       -g geometry, --geometry geometry
	      Sets the X Windows geometry of the graph. This disables text mode. See X(7) for how to specify the geometry.

       -D display, --display display
	      Shows the graph on the given display. The same effect can be achived by setting the DISPLAY environment variable. This disables text
	      mode. See X(7) for valid values.

       --title string
	      Sets the title of the graph window. By default this will be "Battery Graph". If this is set to the empty string, gnuplot(1) will	be
	      allowed set the window title - this can be useful if you want your ~/.Xdefaults to take effect for this.

       -f date, --from date
	      Specifies  the  start  date/time for the graph. This accepts exactly the same date/time specifications as the date (1) command - see
	      examples below or the Texinfo manual for date for details.

       -t date, --to date
	      Specifies the ending date/time for the graph. This accepts exactly the same date/time specifications as the date (1) command  -  see
	      examples below or the Texinfo manual for date for details.

       -s date, --since date
	      Shorthand for --from date --to now

       -d duration, --duration duration
	      Specifies  the  duration for the graph. This can be given in units of seconds, hours, days or weeks by suffixing the number with 's'
	      (seconds), 'm' (minutes), 'h' (hours), 'd' (days) or 'w' (weeks).
	      Units cannot be combined - e.g. '1d6h' will not be valid, whereas '30h' is OK. If no unit is specified, minutes will be assumed.

       --text Shows the graph in text mode on stdout. The resulting size of the graph is determined by the values of  the  environment	variables.
	      LINES  and  COLUMNS  (failing that, the output from tput will be used). This is the default when the environment variable DISPLAY is
	      not set.

EXAMPLES

       Show the last 2 hours:
	      $ battery-graph --duration 2h

       Show the time since mid day:
	      $ battery-graph --from 12:00 --to now
	      or
	      $ battery-graph --since 12:00

       Show the hour before last:
	      $ battery-graph --from '2 hours ago' --duration 1h

       Show the 6 hours after noon:
	      $ battery-graph --from 12:00 --duration 6h
	      or
	      $ battery-graph --from 12:00 --to 18:00

       Show the last 6 hours
	      $ battery-graph --from '6 hours ago'
	      or
	      $ battery-graph --since '6 hours ago'

       Show the last 30 minutes in text mode:
	      $ battery-graph --duration 30 --text

       Show statistics for Tuesday last week
	      $ battery-graph --duration 24h --from 'tuesday last week'
	      or
	      $ battery-graph --duration 1d --from 'tuesday last week'

       Prove that the future hasn't happened yet:
	      $ battery-graph --from yesterday --to tomorrow

       Another way of wasting CPU cycles:
	      $ battery-graph /dev/null

EXIT STATUS

       battery-graph depends on gnuplot (1) to give the correct exit status.

FILES

       If no files are given on the command line, batter-graph reads from /var/log/battery-stats

ENVIRONMENT

       DISPLAY
	      If this variable is not set, --text will be defaulted.

       LINES / COLUMNS
	      Determines the size of the graph in text mode.

DIAGNOSTICS

       If there are no statistics available for the period chosen, an empty graph will result.

NOTES

       There is no requirement for the from time to be earlier than the to time - if so, the X axis will  be  reversed.  Similar  results  can	be
       achieved using a negative duration.

       Also: battery-stat is quite happy to list statistics in the future; stupid, but obedient.

AUTHOR

       This manual page was written by Karl E. Jorgensen <karl@jorgensen.com>, for the Debian GNU/Linux system (but may be used by others).

SEE ALSO

       battery-stats (5),
       date (1),
       battery-stats-collector (8)
       Newer versions of this program may (or may not) be available at http://karl.jorgensen.com/battery-stats

								September 22, 2002						  BATTERY-GRAPH(1)