用于 ssh 和运行命令的 bash 脚本
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bash script to ssh and run commands
提问by mahmood
I want to ssh to a node and run a command there and then exit. This is repeated for all nods. The script is fairly simple
我想通过 ssh 连接到一个节点并在那里运行一个命令然后退出。对所有点头重复此操作。脚本相当简单
#!/bin/bash
NODES="compute-0-0 compute-0-1 compute-0-2 compute-0-3"
for i in $NODES
do
ssh $i
ls -l /share/apps
rpm -ivh /share/apps/file.rpm
exit
done
But the problem is that, after the ssh, the ls -lcommand is missed. Therefore, the command prompt waits for an input!
但问题是，在 ssh 之后，ls -l命令丢失了。因此，命令提示符等待输入！
Any way to fix that?
有什么办法可以解决吗？
UPDATE:
更新：
I modified the loop body as
我将循环体修改为
ssh $i <<END
ls -l /share/apps
exit
END
But I get
但我得到
./lst.sh: line 9: warning: here-document at line 5 delimited by end-of-file (wanted `END')
./lst.sh: line 10: syntax error: unexpected end of file
采纳答案by Avihoo Mamka
Try this
尝试这个
#!/bin/bash
NODES="compute-0-0 compute-0-1 compute-0-2 compute-0-3"
for i in $NODES
do
ssh $i "ls -l /share/apps;rpm -ivh /share/apps/file.rpm;exit;"
done
回答by Avihoo Mamka
I'd change the script and would run the sshcommand with the the command to execute.
我会更改脚本并使用要执行的ssh命令运行命令。
For example:
例如：
#!/bin/bash
NODES="compute-0-0 compute-0-1 compute-0-2 compute-0-3"
for i in $NODES
do
ssh $i "ls -l /share/apps && rpm -ivh /share/apps/file.rpm && exit"
done
The &&operator means that each command will be executed only if the previous command succeeded.
该&&操作装置，如果前面的命令成功的每个命令将只执行。
If you want to run the command independently, you can change the &&operator to ;instead.
如果你想独立运行命令，你可以将&&操作符;改为。
