[solved] how to declare/delete/modify free properties non interactively?

# 7 years ago
philippeg	Hello, I would like to modify, create or delete a free property in a non interactive way. I tried with tango_admin without success, it is probably normal since the help of tango_admin does not seems to allow this use. Thank you. - Philippe Edited 6 years ago

# 7 years ago
Pascal	Hello Philippe Free properties, by definition, are not related to a device (admin or not). You must use Database class methods. Regards Pascal

# 7 years ago
sergi_rubio	If you want to get/set properties from linux shell you can use PyTango: `> MY_VALUE=hostname > python -c "import PyTango;PyTango.Database().put_property('MyFreeProperty',{'HostName':'$MY_VALUE'})" > YOUR_VALUE=$(python -c "import PyTango;print(PyTango.Database().get_property('MyFreeProperty','HostName').values()[0][0])" > echo $YOUR_VALUE hostname` Fandango includes the "tango_property" script that simplifies a bit the second step (it tries to hint whether you search for device/dserver/starter/class/free properties in this order): `> tango_property MyFreeProperty HostName hostname` Keep on dancing, http://www.tango-controls.org/resources/howto/how-fandango/ Edited 7 years ago

# 7 years ago

sergi_rubio

If you want to get/set properties from linux shell you can use PyTango:

> MY_VALUE=hostname

> python -c "import PyTango;PyTango.Database().put_property('MyFreeProperty',{'HostName':'$MY_VALUE'})"

> YOUR_VALUE=$(python -c "import PyTango;print(PyTango.Database().get_property('MyFreeProperty','HostName').values()[0][0])"

> echo $YOUR_VALUE
  hostname

Fandango includes the "tango_property" script that simplifies a bit the second step (it tries to hint whether you search for device/dserver/starter/class/free properties in this order):


> tango_property MyFreeProperty HostName
  hostname

Keep on dancing,

http://www.tango-controls.org/resources/howto/how-fandango/

Edited 7 years ago

# 7 years ago
philippeg	Hello, thanks to both of you for your answers. :) edit: for other readers, you need to add a closing parenthesis to the following line: `YOUR_VALUE=$(python -c "import PyTango;print(PyTango.Database().get_property('MyFreeProperty','HostName').values()[0][0])")` and it works juste fine! - Philippe Edited 7 years ago