bash脚本中的源文件

I am using two versions of ROS next to each other. To use one I have to source some environment variables for the specific version. I would like to create a script that does this. But if I create a script like below the variables are not set, they are probably set in a subshell. How can I source the files to the main terminal shell?

我使用两个版本的ROS彼此相邻。要使用一个我必须为特定版本获取一些环境变量。我想创建一个执行此操作的脚本。但是如果我创建一个类似于下面的脚本，则不会设置变量，它们可能设置在子shell中。如何将文件源到主终端shell？

source.sh:

source.sh：

source /opt/ros/fuerte/setup.bash;
source  ~/fuerte_workspace/setup.bash;

Here is how i am calling source.sh:

这是我如何调用source.sh：

./source.sh
# This does not echo anything, but I expect it should
echo $ros_config

Update: By sourcing source.sh as suggested in the answer, I can now see the variables being set.

更新：通过采购答案中建议的source.sh，我现在可以看到正在设置的变量。

source ./source.sh
# This works now
echo $ros_config

2 个解决方案

#1

Execute Shell Script Using . ./ (dot space dot slash)

使用执行Shell脚本。 ./（点空间点斜线）

While executing the shell script using “dot space dot slash”, as shown below, it will execute the script in the current shell without forking a sub shell.

在使用“点空间点斜杠”执行shell脚本时，如下所示，它将在当前shell中执行脚本而不会分支子shell。

$ . ./setup.bash

In other words, this executes the commands specified in the setup.bash in the current shell, and prepares the environment for you.

换句话说，这将执行当前shell中setup.bash中指定的命令，并为您准备环境。

#2

Use dot notation to source in the script file in the current shell i.e. without creating a sub-shell:

使用点表示法来源当前shell中的脚本文件，即不创建子shell：

. /opt/ros/fuerte/setup.bash
. ~/fuerte_workspace/setup.bash

#1