[英]BASH Script - connect via ssh and run a mysql command
I'm trying to create a simple bash script that will ping a number of clients. 我正在尝试创建一个简单的bash脚本来ping许多客户端。 If the client is not reachable, then it should launch an update on a db on another server... I have a passwordless ssh access to the db server, so i was trying to do the following:
如果客户端无法访问,那么它应该在另一台服务器上的数据库上启动更新...我对数据库服务器有无密码的ssh访问权限,所以我试图执行以下操作:
for i in {11..25}
do
if ping -q -c 1 192.168.42.$i > /dev/null 2>&1
then
echo 1
else
ip=192.168.42.$i
ssh admin@192.168.3.240 "mysql -u parkuser -ppass -e 'update SMARTPARK.client SET online=0 where SMARTPARK.ip_client=$ip'"
fi
done
I'm getting a bash: mysql: command not found
error when using it... Obviously mysql is installed on the db server 我收到一个
bash: mysql: command not found
错误使用它...显然在db服务器上安装了mysql
你在单引号内有单引号,它应该是单个双引号:
ssh admin@192.168.3.240 "mysql -u parkuser -ppass -e 'update SMARTPARK.client SET online=0 where SMARTPARK.ip_client=$ip '"
It seems to work fine for me. 它对我来说似乎很好。 Since you're getting a command not found error, perhaps it is a problem with your
$PATH
on ssh. 由于您收到命令未找到错误,可能是在ssh上使用
$PATH
时出现问题。 Try connecting manually, and running which mysql
to get the full path to the executable. 尝试手动连接,并运行
which mysql
以获取可执行文件的完整路径。 In my case, it's /usr/bin/mysql
, then you might try using that in your statement, such as: 在我的例子中,它是
/usr/bin/mysql
,那么您可以尝试在语句中使用它,例如:
ssh admin@192.168.3.240 "/usr/bin/mysql -u parkuser -ppass -e 'update SMARTPARK.client SET online=0 where SMARTPARK.ip_client=$ip '"
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