DAWNING 曙光 Bourne Shell Programming 算未 ·Certainly the most popular shell is“bash”.Bash is the shell that will appear in the GNU operating system.Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh)and C shell (csh). bash is not only an excellent command line shell, but a scripting language in itself.Shell scripting allows us to use the shell's abilities and to automate a lot of tasks that would otherwise require a lot of commands. Shell编程 75Bourne Shell Programming • Certainly the most popular shell is “bash”. Bash is the shell that will appear in the GNU operating system. Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh). • bash is not only an excellent command line shell, but a scripting language in itself. Shell scripting allows us to use the shell's abilities and to automate a lot of tasks that would otherwise require a lot of commands. Shell 编程 75