# Execute a process
##  Execute a process
### Description
The Execute A Process transform executes a shell script (on the host that runs the pipeline).
The transform is similar to the [Shell](/data-shaper-1.21/knowing-the-data-shaper-designer/workflows/actions/shell.md) workflow action, but can be used in a pipeline to execute for every row.
| Hop Engine | ✓ |
| ---------- | ------------ |
| Spark | ? |
| Flink | ? |
| Dataflow | ? |
### Options
| Option | Description |
| --------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Transform name | Name of the transform; this name has to be unique in a single pipeline |
| Process field | The field name in the data stream that defines the process to start (shell script / batch file to start). Arguments can also be used. |
| Fail if not success | Checking this option means if the exit status is different than zero the transform fails. You can use error handling to get these rows. |
| Output line delimiter | Without defining a line delimiter, all returned lines are collapsed into a single string with no line delimiters. You can set to any line delimiter and special characters can be set with the format $\[value], e.g. $\[0D] for CR or $\[0D,0A] for CR/LF. |
| Result fieldname | Specify here the name of the result fieldname (STRING) added to the output stream of the pipeline. This field is populated by the output stream (stdout) of the process. |
| Error fieldname | Specify here the name of the error fieldname (STRING) added to the output stream of the pipeline. This field is filled by the error stream (stderr) of the process. |
| Exit value | Specify here the name of the exit fieldname (INTEGER) added to the output stream of the pipeline. This field is filled by the exit output of the process. |
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