1.6.2　使用info page

info工具是一个基于菜单的超文本系统，包括少许关于Linux Shell、工具、命令的说明文档。比如可以在命令行中输入info ls来显示ls命令的说明文档：

[root@localhost ~]# info ls File: coreutils.info,  Node: ls invocation,  Next: dir invocation,  Up: Directory listing 10.1 `ls': List directory contents ==================================
The `ls' program lists information about files (of any type, including directories).  Options and file arguments can be intermixed arbitrarily, as usual.
......(
略去内容)......

可以按空格键向下翻页，按PageUp、PageDown键上下翻页，按q键退出info查询。