def subprocess_output(cmd):
"""Run cmd and return output or None, logging errors.
Args:
cmd (list): what to run
Returns:
str: output is None on error else a stripped string
"""
return template_common.subprocess_output(cmd, subprocess_env())
def run_epics_command(server_address, cmd):
return template_common.subprocess_output(cmd, epics_env(server_address))