We have a bunch of python scripts that need to be activated periodically, on local as well as server machines. I also have a bunch of handy bash scripts I use to migrate client wordpress projects to export databases, compress directories, etc which the FTP node can perhaps download.
Could they be a node that lets you run a shell command and proceeds based on the response?
Hi @saitor, welcome to the community! Perhaps the Execute Command node would be useful here? https://docs.n8n.io/nodes/n8n-nodes-base.executeCommand/
Just as an example, I created a workflow that runs a file called test.py and proceeds based on the output of the python program. The python file contains the following code: print 'Yo'.
Here’s the workflow:
{
"nodes": [
{
"parameters": {},
"name": "Start",
"type": "n8n-nodes-base.start",
"typeVersion": 1,
"position": [
250,
300
]
},
{
"parameters": {
"command": "python test.py "
},
"name": "Execute Command",
"type": "n8n-nodes-base.executeCommand",
"typeVersion": 1,
"position": [
450,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$node[\"Execute Command\"].json[\"stdout\"]}}",
"value2": "Yo"
}
]
}
},
"name": "IF",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
650,
300
]
},
{
"parameters": {
"values": {
"string": [
{
"name": "name",
"value": "n8n"
}
]
},
"options": {}
},
"name": "Set",
"type": "n8n-nodes-base.set",
"typeVersion": 1,
"position": [
850,
200
]
},
{
"parameters": {
"values": {
"string": [
{
"name": "name",
"value": "nodemation"
}
]
},
"options": {}
},
"name": "Set1",
"type": "n8n-nodes-base.set",
"typeVersion": 1,
"position": [
850,
400
]
}
],
"connections": {
"Start": {
"main": [
[
{
"node": "Execute Command",
"type": "main",
"index": 0
}
]
]
},
"Execute Command": {
"main": [
[
{
"node": "IF",
"type": "main",
"index": 0
}
]
]
},
"IF": {
"main": [
[
{
"node": "Set",
"type": "main",
"index": 0
}
],
[
{
"node": "Set1",
"type": "main",
"index": 0
}
]
]
}
}
}
Hey @saitor! Welcome to the n8n community. I hope you enjoy your time here.
It sounds like the Execute Command integration is what you are looking for. This this node runs a command on the host and then returns the results in the data of the node.
For example if you created this workflow:
using these parameters for the Execute Command node:
the output of the node would contain the working directory of the n8n service. In my case, I get:
- [
- {
"exitCode": 0,
"stderr": "",
"stdout": "/home/n8n"
}
]
Now, you can extend this capability to other systems using SSH (see here for a good sampling of remote SSH command execution scripts) or you can take a look at a more robust system like Ansible to manage the remote sessions.