bash 在远程节点上的 ssh 命令中使用 SED
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时间：2020-09-18 15:25:57 来源:igfitidea点击:
Using SED in a ssh command on a remote node
提问by mahmood
I wrote a script to ssh to some nodes and run a sedcommand inside the node. The script looks like
我写了一个脚本 ssh 到一些节点并sed在节点内运行一个命令。脚本看起来像
NODES="compute-0-3"
for i in $NODES
do
echo $i
ssh $i 'sed -i \'s/172.16.48.70/172.20.54.10/g\' /etc/hosts;'
done
However, the error is
但是，错误是
unexpected EOF while looking for matching `''
syntax error: unexpected end of file
It seems that the character 'is not treated as the begining of a sedcommand.
似乎字符'不被视为sed命令的开始。
回答by Cyrus
I suggest to replace
我建议更换
ssh $i 'sed -i \'s/172.16.48.70/172.20.54.10/g\' /etc/hosts;'
by
经过
ssh "$i" 'sed -i "s/172.16.48.70/172.20.54.10/g" /etc/hosts'
If you absolutely want to use single quotes:
如果您绝对想使用单引号：
ssh "$i" 'sed -i '"'"'s/172.16.48.70/172.20.54.10/g'"'"' /etc/hosts'
