个人工具
登录
查看“沙盒”的源代码 - Ubuntu中文
页面
讨论
查看源代码
历史
搜索
导航
首页
最近更改
随机页面
页面分类
帮助
编辑
编辑指南
沙盒
新闻动态
字词处理
工具
链入页面
相关更改
特殊页面
页面信息
查看“沙盒”的源代码
来自Ubuntu中文
←
沙盒
跳转至:
导航
,
搜索
因为以下原因,你没有权限编辑本页:
您所请求的操作仅限于该用户组的用户使用:
用户
您可以查看与复制此页面的源代码。
{| style="border: none" width="100%" |- | width="120px" | [[#Shell Operation|Shell Operation]]: | The basic operation of the shell. |- | [[#Quoting|Quoting]]: | How to remove the special meaning from characters. |- | [[#Comments|Comments]]: | How to specify comments. |} When the shell reads input, it proceeds through a sequence of operations. If the input indicates the beginning of a comment, the shell ignores the comment symbol (‘#’), and the rest of that line. Otherwise, roughly speaking, the shell reads its input and divides the input into words and operators, employing the quoting rules to select which meanings to assign various words and characters. The shell then parses these tokens into commands and other constructs, removes the special meaning of certain words or characters, expands others, redirects input and output as needed, executes the specified command, waits for the command’s exit status, and makes that exit status available for further inspection or processing.
返回至
沙盒
。