Shell Command does not work from Automations

1

Hello!
I created a shell command which sends a file to a ftp server which works ok from termina windowl.

Then i copied-pasted it and i am trying to execute it from a automation by shell comand in the configuration.yaml.
My lines are this:

`
shell_command:

sender: curl -T config/cam/snap.jpg -u user:passwword ftp://185.138.xxx.xxx/httpdocs/cam/cam.jpg
`
Then i am firing it from a automation but it does not work.

What am i doing wrong?

Thanks n advance!

2

The Shell Command integration somewhat restrictive, " When using templates, shell_command runs in a more secure environment which doesn’t allow any shell helpers like automatically expanding the home dir ~ or using pipe symbols to run multiple commands. Similarly, only content after the first space can be generated by a template. This means the command name itself cannot be generated by a template, but it must be literally provided." I have been using the Command Line integration instead. Most of my command-line sensors are a “tail -f” grabbing the latest specific entries in the log files (note not all underlying directories are available to Home Assistant especially if you are running in a container, but I digress).

3

Thank you for your answer. And your quides.
I am trying to set up a command line but with no success so far.

I am using the ‘sensor’ edition.

4

Ok all I can do is show you what I have in my configuration.yaml and what it does. First I have this so that HA knows to watch what is in that directory:

homeassistant:
  allowlist_external_dirs:
    - "/share"

(I had to make OS config changes so that my SYSLOG file is put into this directory, and the above entry allows it to look there - and only some directories on the host are visible from within the container). That “/share” directory actually is this on the actual hardware outside of the container:

/usr/share/hassio/share

I have an app called WEEWX running on the host RPI (outside of HA) which grabs information from my weather station and sends it out to various websites. I have the weewx.log file therefore in that same share directory mentioned above…

Then, here are two command_line sensors in my configuration.yaml, watching the weewx.log file and syslog, showing data (note the “cut -c-255” is required as that is the maximum length of a the string that is returned that can be handled). The secoind sensor just shows the error message (only when there is one…)

command_line:
# Add-Ins for monitoring weewx published weather data
  - sensor:
      name: WEEWX_LAST1_SENT_TO_AWEKAS
      command: "grep 'AWEKAS: Published' /share/weewx.log | tail -1 | cut -c-255"
      scan_interval: 30
      command_timeout: 5
      value_template: >
        {% set data = value | regex_findall('\(([0-9]+)\)') | first | int | as_datetime | as_local %}
        {% set ts = data.year ~ ' ' ~ (value | regex_findall('(.+)kruse-pi weewx') | first).strip() %}
        {% set time = strptime(ts, '%Y %b %d %H:%M:%S', data) | as_local %}
        {% set str = time.strftime('%a %-m/%-d %-I:%M:%S%p') ~ ' (5 min)' %}
        {% set indx = str.find("M (") %}
        {% set oldstr = str[indx-1:indx+1] %}
        {{ str.replace(oldstr,oldstr.lower()) }}
      unique_id: WEEWX_LAST1_SENT_TO_AWEKAS
  - sensor:
      name: SYSLOG1_ERRORS
      command: "grep 'ERROR' /share/syslog | tail -1 | cut -c-255"
      scan_interval: 60
      command_timeout: 5
# Value template format is an issue here because the error could be in almost any format.
#      {% set data = value | regex_findall('\(([0-9]+)\)') | first | int | as_datetime | as_local %}
#      {% set ts = data.year ~ ' ' ~ (value | regex_findall('(.+)kruse-pi weewx') | first).strip() %}
#      {% set time = strptime(ts, '%Y %b %d %H:%M:%S', data) | as_local %}
#      {% set str = time.strftime('%a %-m/%-d %-I:%M:%S%p') ~ ' (5 min)' %}
#      {% set indx = str.find("M (") %}
#      {% set oldstr = str[indx-1:indx+1] %}
#      {{ str.replace(oldstr,oldstr.lower()) }}
      unique_id: SYSLOG1_ERRORS