一 杀死指定进程
现知道有一个php线程正在运行，需要杀死
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
root 26280 1 0 2015 ? 00:00:34 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
ps -ef 查询运行进程
leo@localhost$ ps -ef | grep php
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
root 26280 1 0 2015 ? 00:00:34 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
ps -ef 查询并过滤进程id：
leo@localhost$ ps -ef | grep php
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
root 26280 1 0 2015 ? 00:00:34 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
leo@localhost$ ps -ef | grep php | grep -v grep | cut -c 15-20
26280
26280
ps -ef 查询并过滤进程id，并杀死该进程：
leo@localhost$ ps -ef | grep php
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php （杀死进程前）
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php
leo@localhost$ ps -ef | grep daemon_login.php | grep -v grep | cut -c 9-15
28367
leo@localhost$ ps -ef | grep daemon_login.php | grep -v grep | cut -c 9-15 | xargs kill -9
leo@localhost$ ps -ef | grep php
root 26278 1 0 2015 ? 00:00:31 /usr/local/php/bin/php /var/www/html/redis/daemon/daemon_register.php （杀死进程后，无此进程）
或者：
kill -9 `ps -ef|grep “processname” | grep -v "grep"|awk '{print $2} '`
二 杀死批量进程
for pid in $(ps -ef | grep curl | grep -v grep | cut -c 15-20); do （获取进程id数组，并循环杀死所有进程）
echo $pid
kill -9 $pid
done
劝君一句：kill很危险，使用须谨慎。