使用eval用變量的值做爲新的變量名

[root@localhost ~]# x_mm="yyy" [root@localhost ~]# s=x [root@localhost ~]# cat test.txt alt="yyy/20150823020537310.jpg" src= asdasd asdasdasdasd cvdawsdas [root@localhost ~]# sed -i s"#$(eval echo $`

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