Pass variable to subprocess

[paulo79]

String formatting and now use f-string new in Python 3.6 ➡

>>> VARIABLE = 12
>>> s = f"cat /tmp/logall | sort -u | grep -v {VARIABLE}"
>>> s
'cat /tmp/logall | sort -u | grep -v 12'

Is there a way to in python 2.7? I cannot use 3 yet.

I found it:

>>> VARIABLE=12
>>> v_num_final_distinct_grid_disks_per_cell_and_dg = subprocess.check_output("cat /tmp/logall | sort -u | grep -v {}".format(VARIABLE), shell=True);
>>>
>>> print(v_num_final_distinct_grid_disks_per_cell_and_dg)
10

>>> VARIABLE=10
>>> v_num_final_distinct_grid_disks_per_cell_and_dg = subprocess.check_output("cat /tmp/logall | sort -u | grep -v {}".format(VARIABLE), shell=True);
>>> print(v_num_final_distinct_grid_disks_per_cell_and_dg)
12

>>>