# System scenarios

* [Calling a Job and passing the parameter needed to the called Job](https://help.qlik.com/talend/en-US/components/8.0/system/trunjob-tfilelist-tfileinputdelimited-tlogrow-calling-job-and-passing-parameter-needed-to-called-job-standard-component-this)
* [Displaying remote system information via SSH](https://help.qlik.com/talend/en-US/components/8.0/system/tssh-displaying-remote-system-information-via-ssh-standard-component)
* [Echoing 'Hello World!'](https://help.qlik.com/talend/en-US/components/8.0/system/tsystem-echoing-hello-world-standard-component)
* [Executing an external command with multiple parameters using tSystem](https://help.qlik.com/talend/en-US/components/8.0/system/executing-cmd-with-multiple-para-using-tsystem-overview)
* [Modifying a variable during a Job execution](https://help.qlik.com/talend/en-US/components/8.0/system/tsetenv-trunjob-tmsgbox-trunjob-tmsgbox-modifying-variable-during-job-execution-standard-component-the)
* [Passing a value from a parent Job to a child Job](https://help.qlik.com/talend/en-US/components/8.0/system/component-trunjob-pass-value-from-parent-to-child)
* [Propagating the buffered output data from the child Job to the parent Job](https://help.qlik.com/talend/en-US/components/8.0/system/trunjob-tfixedflowinput-tbufferoutput-tlogrow-propagating-buffered-output-data-from-child-job-to-parent-job-standard-component-in-this)
* [Running a list of child Jobs dynamically](https://help.qlik.com/talend/en-US/components/8.0/system/tflowtoiterate-trunjob-tfixedflowinput-tlogrow-running-list-of-child-jobs-dynamically-standard-component-the)