ROS Filesystem Basics

Using rospack

rospack allows you to get information about packages. In this tutorial, we are only going to cover the find option, which returns the path to package.

rospack命令可以用来查找包的路径

Usage:

rospack find [package_name]

Example:

rospack find techx2019

Using roscd

It allows you to change directory (cd) directly to a package or a stack.

roscd命令可以直接像cd一样进入目录，不同的是roscd可以直接定位到ros包

Usage:

roscd [locationname[/subdir]]

Example:

roscd techx2019

Note: roscd will access the directory output by the rospack find command

Using rosls

It allows you to ls directly in a package by name rather than by absolute path.

同roscd和cd的关系

Usage:

rosls [locationname[/subdir]]

Example:

rosls techx2019

Tab Completion(Tab键自动补全)

Example:

roscd tec

Press the Tab right now, you will automatically get the command

roscd techx2019