OneofannoyingthingsaboutLinuxshellisthestrangeshellsyntax.Bashbraceexpansionisanexample.Thefollowingcodecpmenu.lsttommenu.lst.bak:cp/boot/grub/menu.lst{,.bak}Foradetailedexplanation,refertohttp://www.gnu.org/software/bash/manual/bashref.html#Brace...
查看全文