哪里可以找到启动Cadence 下面各种工具的指令呢？

Cadence doesn't document these literally. You need to dig the manual deeply if you don't take its course.

输入指令： which icfb
会出现icfb所在的目录，类似 /xxx/xxx/tools/dfII/bin在这个bin目录，你可以看到大部分cadence 命令

.cshrc文件里看