add some scripts

[debian6500.git] / master / root / bin / monitor_cmd

diff --git a/master/root/bin/monitor_cmd b/master/root/bin/monitor_cmd
new file mode 100755 (executable)
index 0000000..9681684
--- /dev/null
+++ b/master/root/bin/monitor_cmd
@@ -0,0 +1,70 @@
+#!/bin/bash
+
+# default values
+PROGNAME=$(basename $0)
+FULLPROG=$0
+
+# usage
+function usage () {
+    echo "usage: $PROGNAME [-h] [-r] cmd"
+    echo " -h: help message"
+    echo " -s: set stats"
+    echo " -r: reset stats"
+    echo "cmd: shell command"
+}
+
+# reset
+function reset () {
+    echo "reseting stats"
+    [ -f $resource ] && rm $resource
+}
+
+# variables
+set=
+cmd=
+resource=$HOME/.$PROGNAME
+
+# parameter processing
+while [ $# -gt 0 ]; do
+    if [ "$cmd" ]; then
+        cmd="$cmd $1"
+    else
+        case "$1" in
+        -h) usage; exit 0;;
+        -s) set="yes";;
+        -r) reset; exit 0;;
+        *) cmd="$1";;
+        esac
+    fi
+    shift
+done
+
+# check arguments
+[ "$cmd" ] || { echo "no command specified"; exit 1; }
+[ "$(which ${cmd/ *})" ] || { echo "command not found '$cmd'"; exit 1; }
+ 
+# read old values
+[ -f $resource ] && source $resource
+
+# main
+var=$(echo _$cmd | sed 's/[^A-Za-z0-9]/_/g;s/__*/_/g')
+newvar=($(eval $cmd | awk '{ for (i = 1; i <= NF; i++) if ($(i) ~ /^[-+0-9][0-9]*$/) printf " %s", $(i) }'))
+eval oldvar=(\${$var[@]})
+
+# compute diff
+for ((i=0; i<${#newvar[@]}; i++)); do
+    [ "${oldvar[$i]}" ] && v[$i]=$((newvar[i] - oldvar[i])) || v[$i]=${newvar[$i]}
+done
+
+# ouput
+if [ "$set" = "yes" ]; then
+    echo "$var=(${newvar[@]})" >>$resource
+    awk -F= '{ a[$1]=$2 } END { for (i in a) print i "=" a[i] }' $resource > $resource.n
+    mv -f $resource.n $resource
+else
+    str=""
+    for ((i=0; i<${#v[@]}; i++)); do
+        str="$str; v[$i]=${v[$i]}"
+    done
+    eval $cmd | gawk 'BEGIN { k=0 '"$str"' } { n = 1; for (i=1; i<=NF; i++) if ($(i) ~ /^[-+0-9][0-9]*$/) { if ((i == 1) && ! ($0 ~ /^ /)) $(i) = v[k]; else $0 = gensub(/ [-+0-9][0-9]*/, " " v[k], n); k++; n++ } print }'
+fi