Workbench allows you to use script libraries to customize scripts. You can create routine tasks (such as running automated O&M scripts, polling processes, updating applications, and installing patches) and associate scripts with these tasks. Then, you can run the scripts to execute the tasks on Elastic Compute Service (ECS) instances. This topic describes how to create script libraries and scripts in Workbench.
Prerequisites
A Linux instance is created and is in the Running state.Create a script library
Perform the following operations to create a script library. A script library can contain multiple scripts.
- In the top navigation bar, choose .
- In the left-side navigation pane, click the
icon to the right of All Scripts Libraries. 
- In the Create Script Library dialog box, configure the parameters described in the following table and click OK.
Parameter Description Script Library Name Enter a name for the script library. Script Library Icon Select the icon of the script library and the icon color for easy identification and classification. Script Library Description Enter a description for the script library. Script Library Sorting Set a priority for the script library. Scripts in different script libraries are executed based on the priorities of the script libraries. If multiple script libraries have the same priority, scripts in the script libraries are executed in the order of time when these script libraries were created.
After the script library is created, you can view the script library in the left-side navigation pane. You can also modify or delete the script library, or add scripts to the script library as needed.
Create a script
After the script library is created, you must add scripts that you want to run to the script library. Perform the following operations to add scripts to a script library.
- In the top navigation bar, choose .
- You can use one of the following methods to add scripts:
- ①: In the left-side navigation pane, click the
icon to the right of the script library that you created. - ②: Click the script library. On the page that appears, click Create Script.
- ①: In the left-side navigation pane, click the
- In the Create Script dialog box, configure the parameters described in the following table and click OK.
Parameter Description Script Library By default, the selected script library is displayed. Script Name Enter a name for the script. Script Icon Select the icon of the script and the icon color for easy identification and classification. Script Type Select a script type. Valid values: Bash Shell and Python. Script Content Enter or paste the content of the script. You must check whether the syntax, logic, or algorithm associated with the script is correct. For example, if you enter
ps -ef | grep java, you can run this script on an ECS instance to view all Java processes in the instance. For information about sample shell commands, see View instance configurations.Script Description Enter a description for the script. Timeout Period (Seconds) Specify a timeout period for the script to be run on instances. Default value: 300. Unit: seconds. If a task that runs the script times out, the system forcefully terminates the task process. Sort Scripts By Set a priority for the script. Scripts in the same script library are executed based on their specified priorities. If multiple scripts have the same priority, the scripts are executed in the order of time when they were created.
After the script is added to the script library, you can view the information of the script in the script list. You can also modify or delete the script as needed.