baraction.sh

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