关于shell中使用ssh的变量问题
source link: http://blog.colorccm.com/2020/11/06/it/shell_ssh/
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关于shell中使用ssh的变量问题
在shell中使用ssh对远程服务器进行操作，对于变量需要特殊标记。
localparam="hello"
ssh user@ip <<EOF
echo ${localparam}
remoteparam="world"
echo \${remote} #远程的变量需要用\$
EOF
例如需要ssh到远程服务器上操作，并且有for循环操作的，就需要注意远程变量的问题
ssh user@ip <<EOF
for i in $(echo test.txt)
do
echo ${i} #无法正确显示
echo \${i} #可以正确显示
done
EOF
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