| Advanced Bash-Scripting Guide: An in-depth exploration of the art of shell scripting | ||
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使用if/then结构的测试可以嵌套。最终的结果和使用上一节的&&混合比较操作符一样。
1 if [ condition1 ] 2 then 3 if [ condition2 ] 4 then 5 do-something # But only if both "condition1" and "condition2" valid. 6 fi 7 fi |
阅读例子 34-4可看到一个嵌套的if/thenif/then条件测试。