shell 判断进程是否关闭,如果关闭,自动启用

子枫 [Rainy]

发布于 2022-06-08

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<pre class="brush:php;toolbar:false">#!&nbsp;/bin/bash
nginx_procnum=`ps&nbsp;-ef&nbsp;|&nbsp;grep&nbsp;&quot;nginx&quot;&nbsp;|&nbsp;grep&nbsp;-v&nbsp;grep&nbsp;|&nbsp;wc&nbsp;-l`
mysql_procnum=`ps&nbsp;-ef&nbsp;|&nbsp;grep&nbsp;&quot;mysqld&quot;&nbsp;|&nbsp;grep&nbsp;-v&nbsp;grep&nbsp;|&nbsp;wc&nbsp;-l`
redis_procnum=`ps&nbsp;-ef&nbsp;|&nbsp;grep&nbsp;&quot;redis&quot;&nbsp;|&nbsp;grep&nbsp;-v&nbsp;grep&nbsp;|&nbsp;wc&nbsp;-l`
memcached_procnum=`ps&nbsp;-ef&nbsp;|&nbsp;grep&nbsp;&quot;memcached&quot;&nbsp;|&nbsp;grep&nbsp;-v&nbsp;grep&nbsp;|&nbsp;wc&nbsp;-l`
if&nbsp;[&nbsp;$nginx_procnum&nbsp;-eq&nbsp;0&nbsp;]
then
echo&nbsp;&quot;nginx&nbsp;starting...&quot;
/etc/init.d/nginx&nbsp;start
elif&nbsp;[&nbsp;$mysql_procnum&nbsp;-eq&nbsp;0&nbsp;]
then
echo&nbsp;&quot;mysql&nbsp;starting...&quot;
/etc/init.d/mysqld&nbsp;start
elif&nbsp;[&nbsp;$redis_procnum&nbsp;-eq&nbsp;0&nbsp;]
then
echo&nbsp;&quot;redis&nbsp;starting...&quot;
/etc/init.d/redis&nbsp;start
elif&nbsp;[&nbsp;$memcached_procnum&nbsp;-eq&nbsp;0&nbsp;]
then
echo&nbsp;&quot;memcached&nbsp;starting...&quot;
/etc/init.d/memcached&nbsp;start
else
echo&nbsp;&quot;running&nbsp;well&quot;
fi</pre><p><br/></p>

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shell 判断进程是否关闭,如果关闭,自动启用

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