Provided by: battery-stats_0.3.3-2_i386 bug

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 hasnt 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)