#!/bin/bash
var="groad.net.txt"
echo ${var%.*}
# sh tmp.sh
groad.net[/qutoe]
将上面的 ${var%.*} 改成 ${var%%.*} ,那么将会看到输出为:
[quote]# sh tmp.sh
groad
#!/bin/bash
var="groad.net.txt"
echo ${var##*.}
# sh tmp.sh
txt
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