Note:
Return code and stdout/stderr: The gpa_ ctrl print parameters to
stdout/stderr according to their status such that an advanced user can eas-
ily filter them. It also returns specific error code depending on the status.
For more information please read carefully gpa_ctrl –h.
4.4.2 Applying changes online
If a parameter is writeable, this means that it can be directly applied by using the following
syntax:
gpa_ctrl <module_name> <param_path> <new_value>
For example, to disable the alert for the right power supply the user must execute:
gpa_ctrl hald pws/pwsr/disable_alert Yes
If the command returns without any errors, this mean that the changes have been properly
applied. This can be checked by reading back the output of
gpa_ctrl hald pws/pwsr/
4.4.3 Other functionalities
To improve legibility, the parameters can be displayed in a tree view by adding the –t
flag:
The user can get more information about the parameters by using the verbose flag -v:
4.4 CLI Monitoring
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