baraction.sh

   1 #!/bin/sh
   2 #
   3
   4 print_date() {
   5         # The date is printed to the status bar by default.
   6         # To print the date through this script, set clock_enabled to 0
   7         # in scrotwm.conf.  Uncomment "print_date" below.
   8         FORMAT="%a %b %d %R %Z %Y"
   9         DATE=`date "+${FORMAT}"`
  10         echo -n "${DATE}     "
  11 }
  12
  13 print_mem() {
  14         MEM=`/usr/bin/top | grep Free: | cut -d " " -f6`
  15         echo -n "Free mem: $MEM  "
  16 }
  17
  18 _print_cpu() {
  19         typeset -R4 _1=${1} _2=${2} _3=${3} _4=${4} _5=${5}
  20         echo -n "CPU:${_1}% User${_2}% Nice${_3}% Sys${_4}% Int${_5}% Idle  "
  21 }
  22
  23 print_cpu() {
  24         OUT=""
  25         # iostat prints each column justified to 3 chars, so if one counter
  26         # is 100, it jams up agains the preceeding one. sort this out.
  27         while [ "${1}x" != "x" ]; do
  28                 if [ ${1} -gt 99 ]; then
  29                         OUT="$OUT ${1%100} 100"
  30                 else
  31                         OUT="$OUT ${1}"
  32                 fi
  33                 shift;
  34         done
  35         _print_cpu $OUT
  36 }
  37
  38 print_apm() {
  39         BAT_STATUS=$1
  40         BAT_LEVEL=$2
  41         AC_STATUS=$3
  42
  43         if [ $AC_STATUS -ne 255 -o $BAT_STATUS -lt 4 ]; then
  44                 if [ $AC_STATUS -eq 0 ]; then
  45                         echo -n "on battery (${BAT_LEVEL}%)"
  46                 else
  47                         case $AC_STATUS in
  48                         1)
  49                                 AC_STRING="on AC: "
  50                                 ;;
  51                         2)
  52                                 AC_STRING="on backup AC: "
  53                                 ;;
  54                         *)
  55                                 AC_STRING=""
  56                                 ;;
  57                         esac;
  58                         case $BAT_STATUS in
  59                         4)
  60                                 BAT_STRING="(no battery)"
  61                                 ;;
  62                         [0-3])
  63                                 BAT_STRING="(battery ${BAT_LEVEL}%)"
  64                                 ;;
  65                         *)
  66                                 BAT_STRING="(battery unknown)"
  67                                 ;;
  68                         esac;
  69
  70                         FULL="${AC_STRING}${BAT_STRING}"
  71                         if [ "$FULL" != "" ]; then
  72                                 echo -n "$FULL"
  73                         fi
  74                 fi
  75         fi
  76 }
  77
  78 print_cpuspeed() {
  79         CPU_SPEED=`/sbin/sysctl hw.cpuspeed | cut -d "=" -f2`
  80         echo -n "CPU speed: $CPU_SPEED MHz  "
  81 }
  82
  83 while :; do
  84         # instead of sleeping, use iostat as the update timer.
  85         # cache the output of apm(8), no need to call that every second.
  86         /usr/sbin/iostat -C -c 3600 |&  # wish infinity was an option
  87         PID="$!"
  88         APM_DATA=""
  89         I=0
  90         trap "kill $PID; exit" TERM
  91         while read -p; do
  92                 if [ $(( ${I} % 1 )) -eq 0 ]; then
  93                         APM_DATA=`/usr/sbin/apm -alb`
  94                 fi
  95                 if [ $I -gt 2 ]; then
  96                         # print_date
  97                         print_mem $MEM
  98                         print_cpu $REPLY
  99                         print_cpuspeed
 100                         print_apm $APM_DATA
 101                         echo ""
 102                 fi
 103                 I=$(( ${I} + 1 ));
 104         done
 105 done