shell多进程ping

router_id

大家好！我想实现每次ping10个主机多线程的方法，我的脚本刚好给搞反了。成了每次ping相同的主机10次.请大哥们帮忙看看哪里出问题了

#!/bin/bash
tmpFifo=/tmp/mutiplproc.fifo
totalProc=10
pingListHome=/opt/c
taskNum=$(cat /opt/c/ip.log |wc -l)
mkfifo ${tmpFifo} && exec 104<>${tmpFifo}
`rm -rf /tmp/mutiplproc.fifo`

function pingChack(){
        for iplist in $(cat ${pingListHome}/ip.log);do
                pingTest=$(ping -c 1 $iplist &>/dev/null)
                if [ $? -eq 0 ];then
                        echo "Host $iplist is up" >>/opt/c/upHost.log
                else
                        echo "Host $iplist is down" >>/opt/c/downHost.log
                fi
        done
}

for ((i=0;i<$totalProc;i++));do
        echo "" >&104
done

for ((task=0;task<=${taskNum};task++));do
        read -u 104
        {
                pingChack
                echo "">&104
        }&
done
wait
echo "ping host is finished"
exec 104>&-
exec 104<&-

龙牙地主天

回复 1# router_id

https://zhangguanzhang.github.io/2017/04/15/shell_process/

router_id

谢谢你的教程！我的问题是：每次不是ping 10个IP，而是把1个IP给ping了10次.

vagrant_1220

#!/bin/bash
#  thread number
THREAD_NUM=10
#ping count
count_perIP=1
pingListHome=/opt/c
tmpFifo=/tmp/mutiplproc.fifo
mkfifo ${tmpFifo}
exec 9<>${tmpFifo}
for ((i=0;i<$THREAD_NUM;i++))
do
    echo -ne "\n" 1>&9
done
##############
for iplist in $(cat ${pingListHome}/ip.log);do
do
read -u 9
    {
pingTest=$(ping -c ${count_perIP} $iplist &>/dev/null)
                 if [ $? -eq 0 ];then
                         echo "Host $iplist is up" >>/opt/c/upHost.log
                 else
                         echo "Host $iplist is down" >>/opt/c/downHost.log
                 fi
echo -ne "\n" 1>&9
}&
done
################
wait
#############
echo "ping host is finished"
test -f ${tmpFifo} && rm -f ${tmpFifo}

router_id

回复 4# vagrant_1220


谢谢您的帮助和回复！

我测试后发现这条命令没有执行到：test -f ${tmpFifo} && rm -f ${tmpFifo}

每次运行的时候提示：mkfifo: cannot create fifo ‘/tmp/mutiplproc.fifo’: File exists

vagrant_1220

文件删除不成功 test -f ${tmpFifo}   应该是 test -p ${tmpFifo} ,因为是管道文件

router_id

回复 7# vagrant_1220

好的。我试试！谢谢！