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