本人在写脚本重启动过程遇到坑,分享给大家,避免大家误入同样的坑。
[root@test scripts]# more squid.sh #!/bin/bash source /etc/profile kill -9 $(ps -ef |grep "squid" |grep -v "grep" |awk '{print $2}') ps aux |grep squid sleep 1 /usr/sbin/squid -f /etc/squid/squid.conf ps aux |grep squid
进程图
[root@test scripts]# sh -x squid.sh + source /etc/profile ++ '[' -x /usr/bin/id ']' ++ '[' -z 0 ']' +++ /usr/bin/id -un ++ USER=root ++ LOGNAME=root ++ MAIL=/var/spool/mail/root ++ '[' 0 = 0 ']' ++ pathmunge /usr/sbin ... ... +++ alias 'which=alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde' ++ unset i ++ unset -f pathmunge +++ whoami ++ export 'HISTTIMEFORMAT=%F %T root ' ++ HISTTIMEFORMAT='%F %T root ' + stop ++ ps -ef ++ grep --color=auto squid ++ grep --color=auto -v grep ++ awk '{print $2}' + kill -9 15556 15561 15565 16376 16397 Killed
由于执行squid.sh 脚本时,直接将当前shell脚本一起kill 掉了。造成后续启动服务命令没有执行。
#!/bin/bash source /etc/profile kill -9 $(ps -ef |grep "/usr/sbin/squid -f /etc/squid/squid.conf" |grep -v "grep" |awk '{print $2}') kill -9 $(ps -ef |grep "/var/log/squid/access.log" |grep -v "grep" |awk '{print $2}') ps aux |grep squid sleep 1 /usr/sbin/squid -f /etc/squid/squid.conf echo "squid is restart $(date)" >> /data/logs/squid.log