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The rosbash package contains some useful bash functions and adds tab-completion to a large number of the basic ros utilities.

To enable rosbash in Electric, make sure that it gets sourced in your bashrc:

source ${ROS_ROOT}/tools/rosbash/rosbash

This is done by default when following most of the standard install instructions. The following source command only works with newer versions of ROS.

When you source the distro specific setup file like:

source /opt/ros/$ROS_DISTRO/setup.bash

you will implicitly get all bash-specific command.

Other Shells

The rosbash package includes limited support for zsh and tcsh by way of sourcing the roszsh or rostcsh files respectively. We currently do not provide documentation on these shells, though much of the functionality is similar to the bash shell extensions.


Fish support has been added to rosbash. To activate it:

source /opt/ros/$ROS_DISTRO/share/rosbash/rosfish

you can add this statement to the conf.d directory to execute it automatically on login, such as ~/.config/fish/conf.d/rosfish.fish.

Sourcing a catkin workspace requires using bass:

bass source ~/catkin_ws/devel/setup.bash

You can have this done automatically as soon as you cd to the workspace directory, by adding a further config file (e.g. ~/.config/fish/conf.d/catkin.autosource.fish):

function catkinSource --on-variable PWD
    status --is-command-substitution; and return
    if test -e ".catkin_workspace"; or test -e ".catkin_tools"
        bass source devel/setup.bash
        echo "Configured the folder as a workspace"

Command line utilities

rosbash includes the following command line utilities:


roscd allows you to change directories using a package name, stack name, or special location.


roscd <package-or-stack>[/subdir]

For example:

roscd roscpp

You can continue to use a relative path after the package name to go further into the package:

roscd roscpp/include/ros

roscd without argument will take you to $ROS_WORKSPACE.

Additionally, the ROS_LOCATIONS environment variable can be used to add additional special locations for use with roscd. ROS_LOCATIONS is a colon-separated list of key=path pairs.

For example, adding the following to your .bashrc file:

export ROS_LOCATIONS="pkgs=~/ros/pkgs:dev=~/ros/dev"

Will then allow you to type:

$ roscd dev

and end up in ~/ros/dev.


rospd is the pushd equivalent of roscd. It allows you to keep multiple locations in a directory-stack while still using ros package names. You can then use the number of any directory in your directory stack to jump back there.

For example:

leibs@bar:~$ rospd hokuyo_node/
0 ~/ros/pkgs/laser_drivers/hokuyo_node
1 ~
leibs@bar:~/ros/pkgs/laser_drivers/hokuyo_node$ rospd roscpp_tutorials/
0 ~/ros/pkgs/ros_tutorials/roscpp_tutorials
1 ~/ros/pkgs/laser_drivers/hokuyo_node
2 ~
leibs@bar:~/ros/pkgs/ros_tutorials/roscpp_tutorials$ rospd laser_pipeline/
0 ~/ros/dev/laser_pipeline
1 ~/ros/pkgs/ros_tutorials/roscpp_tutorials
2 ~/ros/pkgs/laser_drivers/hokuyo_node
3 ~
leibs@bar:~/ros/dev/laser_pipeline$ rospd 1
0 ~/ros/pkgs/ros_tutorials/roscpp_tutorials
1 ~/ros/pkgs/laser_drivers/hokuyo_node
2 ~
3 ~/ros/dev/laser_pipeline


rosd lists the directories in your directory stack. This is for use with rospd.

For example:

leibs@bar:~/ros/pkgs/laser_drivers/hokuyo_node$ rosd
0 ~/ros/pkgs/laser_drivers/hokuyo_node
1 ~
2 ~/ros/dev/laser_pipeline


rosls allows you to view the contents of a package, stack, or location.

For example:

$ rosls roscpp
$ rosls roscpp/include/ros


rosed allows you to easily edit files in a ROS package by typing the package name and the name of the file you want to edit:

$ rosed roscpp_tutorials add_two_ints_server.cpp

Note: you can specify ANY file in a package, including those further down within the file hierarchy. If you specify an ambiguous file you will be prompted to select one.

For example:

$ rosed roscpp CMakeLists.txt
You have chosen a non-unique filename, please pick one of the following:
1) ~/ros/ros/core/roscpp/test/CMakeLists.txt
2) ~/ros/ros/core/roscpp/CMakeLists.txt
3) ~/ros/ros/core/roscpp/src/CMakeLists.txt
4) ~/ros/ros/core/roscpp/src/libros/CMakeLists.txt

The default editor for rosed is vim. To use a different editor, set the EDITOR environment variable. E.g., in your ~/.bashrc:

export EDITOR='emacs -nw'

This example makes emacs the default editor.

You also can change the editor for one rosed call on the fly:

EDITOR=geany rosed rosbash rosbash


roscp allows you to conveniently copy a file from a package. Similar to rosed you can specify any file in the package regardless of hierarchy.

For example:

$ roscp roscpp_tutorials talker.cpp .

Will end up copying the file from ~/ros/pkgs/ros_tutorials/roscpp_tutorials/talker/talker.cpp


rosrun allows you to run an executable in an arbitrary package from anywhere without having to give its full path or cd/roscd there first.


rosrun <package> <executable>


rosrun roscpp_tutorials talker

It's also possible to pass a ~parameter using the following syntax (replace the ~ with an _):

rosrun package node _parameter:=value


rosrun my_package my_node _my_param:=value

...or run with a given name:

rosrun package node __name:=name


rosrun my_package my_node __name:=my_name

For more information about remapping, see: Remapping Arguments

Starting in Indigo, rosrun has a --prefix option which can be used to run a node in gdb or valgrind.


rosrun --prefix 'gdb -ex run --args' my_package my_node

For more example prefixes, see: Roslaunch Nodes in Valgrind or GDB

Tab Completion

rosbash enables tab-completion for its own tools and for a number of other ros utilities: rosmake, roslaunch, rosparam, rosnode, rostopic, rosservice, rosmsg, rossrv, rosbag.

There are a couple of generic completion rules that may be appropriate for other utilities. Looking through the rosbash source may provide insights into replicating similar functionality for other nodes, however, the code is not yet nicely generalized or re-usable. In a future release of ROS, we plan to incorporate a more generically re-usable tab-completion framework into rosbash and the other common shells used by ROS.

2024-06-22 14:18