bash（Bourne Again Shell）：由GNU开发的Shell，主要目标是与POSIX标准保持一致，同 时兼顾对sh的兼容，bash从csh和ksh借鉴了很多功能，是各种Linux发行版标准配置的 Shell，在Linux系统上/bin/sh往往是指向/bin/bash的符号链接。虽然如此，bash和sh还是有很多不同的，一方面，bash扩展了一些命令和参数，另一方面，bash并不完全和sh兼容，有些行为并不一致，所以bash需要模拟sh的行为：当我们通过sh这个程序名启动bash
英文原版 Writing C-shell scr ipts (Guide3, Version3.0) The c-shell is the program which interprets the commands that you type at the keyboard when you use the Unix operting system. It is possible to put C-shell commands into a file, called a scr ipt. Th
出自bash的faq，仔细看看。顺便翻译学习一下。 代码如下:Section C: Differences from other Unix shellsC：跟其他UNIX shells脚本的区别C1) How does bash differ from sh, the Bourne shell?C1） bash和 sh、Bourne shell的区别This is a non-comprehensive list of features that differentiate bashfrom t
csh实例 参考：
代码如下:
#!/bin/csh -vx
#csh -vx show the command before running to help debug
#just to check syntax
#csh -n $0
#argv
if ($#argv < 2) then
echo “Sorry, but you entered too few parameters”
echo “usage: $0 arg1 arg2
exit
endif
s
