[root@capitek1 ~]# ps -ef|grep mysql
root     11131     1 0 12:30 pts/0    00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/capitek1.pid
mysql    11186 11131 0 12:30 pts/0    00:00:00 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/capitek1.err --pid-file=/var/lib/mysql/capitek1.pid
root     14140     1 0 13:06 pts/0    00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/capitek1.pid
mysql    14198 14140 0 13:06 pts/0    00:00:00 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/capitek1.err --pid-file=/var/lib/mysql/capitek1.pid
root     14448 14282 0 13:07 pts/1    00:00:00 grep mysql
[root@capitek1 ~]# pgrep mysqld #有4个mysqld pid
11131
11186
14140
14198
[root@capitek1 ~]# kill -9 `pgrep mysqld`   #这里利用``，里面pgrep产生多个pid
[root@capitek1 ~]# pgrep mysqld
[root@capitek1 ~]# ps -ef|grep mysql
root     14529 14282 0 13:08 pts/1    00:00:00 grep mysql
[root@capitek1 ~]#

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利用pgrep批量kill杀死多个mysqld进程

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