作者：gnuhpc
出处：http://www.cnblogs.com/gnuhpc/
#!/bin/bash
#
# Simple call generator which uses Asterisk (www.asterisk.org)
# to generate calls.
#
# This program is free software, distributed under the terms of
# the GNU General Public License.
#
# Parameters of the call generator
#
CALLFILE=""
CALLSPOOL=""
CALLMINW="" # In seconds
CALLMAXW="" # In seconds
NO_ARGS=0
if [ $# -eq "$NO_ARGS" ] # Script invoked with no command-line args?
then
echo "Usage: `basename $0` [-fs12]"
echo " -f The call file to use."
echo " -s The Asterisk call spool directory."
echo " -1 The minimum time in seconds to wait before initiating a call."
echo " -2 The maximum time in seconds to wait before initiating a call."
exit 1
fi
#
# Get options from command line
#
while getopts ":f:s:1:2:v" option
do
case $option in
f )
CALLFILE=$OPTARG
;;
s )
CALLSPOOL=$OPTARG
;;
1 )
CALLMINW=$(($OPTARG))
;;
2 )
CALLMAXW=$(($OPTARG))
;;
esac
done
#echo "Call file: $CALLFILE"
#echo "Spool directory: $CALLSPOOL"
#echo "Minimum time: $CALLMINW second(s)"
#echo "Maximum time: $CALLMAXW second(s)"
#
# Do some parameters checking
#
if [ -z "$CALLFILE" ]; then
echo "No call file?"
exit 1
else
if [ ! -f $CALLFILE ]; then
echo "Call file '$CALLFILE' does not exist."
exit 1
fi
fi
if [ -z "$CALLSPOOL" ]; then
echo "No call spool directory?"
exit 1
else
if [ ! -d "$CALLSPOOL" ]; then
echo "Call spool directory '$CALLSPOOL' does not exist."
exit 1
fi
fi
if [ -z "$CALLMINW" ]; then
echo "No min call waiting time?"
exit 1
fi
if [ -z "$CALLMAXW" ]; then
echo "No max call waiting time?"
exit 1
fi
if [ $CALLMINW -gt $CALLMAXW ]; then
echo "Inappropriate values for min and max call waiting times."
exit 1
fi
CALLNO="1"
RANDMAX="32767"
RANDOP=$((RANDMAX/CALLMAXW))
TIME="0"
CPS="0"
CPS_STRING="-"
while [ 1 ]
do
# Get a random number between CALLMINW...CALLMAXW
# Note: Use bash's RANDOM variable (generates a random between 0...32767)
# Note: If the limits have the same value, always return that value
if [ $CALLMAXW -eq $CALLMINW ]; then
RES=$CALLMAXW
else
while [ 1 ]
do
RAND=$RANDOM
RES=$((RAND/RANDOP))
if [[ $RES -ge $CALLMINW ]]; then
if [[ $RES -le $CALLMAXW ]]; then
break
fi
fi
done
fi
# Generate a call after a random time interval
echo "[Call $CALLNO, Time $TIME, CPS $CPS_STRING] Waiting $RES second(s)..."
sleep $RES
cp -f "$CALLFILE" "$CALLSPOOL/callgen$RANDOM$RANDOM"
# Update stuff
CALLNO=$((++CALLNO))
TIME=$((TIME+RES))
CPS=$((CALLNO*100/TIME))
CPS_STRING=$((CPS/100)).$(($((CPS%100))/10))$(($((CPS%100))%10))
done