replicate the unix(command)

[prjemian]

This is useful when converting SPEC macros, such as implemented for APS 8-ID-I

• confirm it is running on a unix system
• use logging package
• log any error output

[prjemian]

Hmmm... Seems there already exists such a command, but with basic features. Also returns stderr.

apstools/apstools/utils.py

Lines 572 to 576 in 51b147f

	def unix_cmd(command_list):
	"""run a UNIX command, returns (stdout, stderr)"""
	process = subprocess.Popen(command_list, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
	stdout, stderr = process.communicate()
	return stdout, stderr

Let's deprecate that command in favor of the new one. Why? New one has same name and call signature as counterpart in SPEC. Also, less likely to be overlooked. Again.

[prjemian]

Needs unit tests