Compare List-Serice-Status difference between SystemV and SystemD

compare_systemd_systemv_list.py

#!/usr/bin/env python3
import subprocess as sp
import shlex

CMD_SYSTEMV_LIST="""
service --status-all | cut -d']' -f2 | xargs -n 1
"""

CMD_SYSTEMD_LIST="""
systemctl list-units --type=service | cut -d' ' -f1
"""

procv = sp.Popen(CMD_SYSTEMV_LIST
                 , stdout = sp.PIPE, shell=True)

procd = sp.Popen(CMD_SYSTEMD_LIST
                 , stdout = sp.PIPE, shell=True)

outv, errv = procv.communicate()
outd, errd = procd.communicate()

if errv or errd:
    print('errv:', errv, sep="\n")
    print('errd:', errd, sep="\n")
    os.exit(1)

vset = set(outv.decode().split())
dset = set(outd.decode().split())

print('==> Following service listed in SystemV are not listed in SystemD:')
print(*[ v for v in vset
        if all([not (v.lower() in d.lower()) for d in dset])]
        , sep="\n")