baraction.sh

   1 #!/bin/sh
   2
   3 print_date() {
   4         # The date is printed to the status bar by default.
   5         # To print the date through this script, set clock_enabled to 0
   6         # in scrotwm.conf.  Uncomment "print_date" below.
   7         FORMAT="%a %b %d %R %Z %Y"
   8         DATE=`date "+${FORMAT}"`
   9         echo -n "${DATE}     "
  10 }
  11
  12 _print_cpu() {
  13         typeset -R4 _1=${1} _2=${2} _3=${3} _4=${4} _5=${5}
  14         echo -n "CPU:${_1}% User${_2}% Nice${_3}% Sys${_4}% Int${_5}% Idle     "
  15 }
  16
  17 print_cpu() {
  18         OUT=""
  19         # iostat prints each column justified to 3 chars, so if one counter
  20         # is 100, it jams up agains the preceeding one. sort this out.
  21         while [ "${1}x" != "x" ]; do
  22                 if [ ${1} -gt 99 ]; then
  23                         OUT="$OUT ${1%100} 100"
  24                 else
  25                         OUT="$OUT ${1}"
  26                 fi
  27                 shift;
  28         done
  29         _print_cpu $OUT
  30 }
  31
  32 print_apm() {
  33         BAT_STATUS=$1
  34         BAT_LEVEL=$2
  35         AC_STATUS=$3
  36
  37         if [ $AC_STATUS -ne 255 -o $BAT_STATUS -lt 4 ]; then
  38                 if [ $AC_STATUS -eq 0 ]; then
  39                         echo -n "on battery (${BAT_LEVEL}%)"
  40                 else
  41                         case $AC_STATUS in
  42                         1)
  43                                 AC_STRING="on AC: "
  44                                 ;;
  45                         2)
  46                                 AC_STRING="on backup AC: "
  47                                 ;;
  48                         *)
  49                                 AC_STRING=""
  50                                 ;;
  51                         esac;
  52                         case $BAT_STATUS in
  53                         4)
  54                                 BAT_STRING="(no battery)"
  55                                 ;;
  56                         [0-3])
  57                                 BAT_STRING="(battery ${BAT_LEVEL}%)"
  58                                 ;;
  59                         *)
  60                                 BAT_STRING="(battery unknown)"
  61                                 ;;
  62                         esac;
  63
  64                         FULL="${AC_STRING}${BAT_STRING}"
  65                         if [ "$FULL" != "" ]; then
  66                                 echo -n "$FULL"
  67                         fi
  68                 fi
  69         fi
  70 }
  71
  72 while :; do
  73         # instead of sleeping, use iostat as the update timer.
  74         # cache the output of apm(8), no need to call that every second.
  75         /usr/sbin/iostat -C -c 3600 |&  # wish infinity was an option
  76         APM_DATA=""
  77         I=0
  78         while read -p; do
  79                 if [ $(( ${I} % 59 )) -eq 0 ]; then
  80                         APM_DATA=`/usr/sbin/apm -alb`
  81                 fi
  82                 if [ $I -gt 2 ]; then
  83                         # print_date
  84                         print_cpu $REPLY
  85                         print_apm $APM_DATA
  86                         echo ""
  87                 fi
  88                 I=$(( ${I} + 1 ));
  89         done
  90 done