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Python, pasted on Jan 17: 
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CLI_Output = '''
                Router Link States (Area 0.0.0.0)

Link ID         ADV Router      Age        Seq#       Checksum Link Count
10.189.7.250    10.189.7.250    1102       0x80012fa1 0x6b32   2
10.200.254.252  10.200.254.252  97          0x80000003 0x00501E 3

                Net Link States (Area 0.0.0.0)

Link ID         ADV Router      Age        Seq#       Checksum
10.189.254.242  10.189.254.242  1452       0x80001cf4 0xefab
10.189.0.242    10.189.0.242    1452       0x80001cf4 0xefab

                Summary Link States (Area 0.0.0.0)

Link ID         ADV Router      Age        Seq#       Checksum     Route
10.189.127.0    10.189.254.242  10         0x80001cde 0x6602     10.189.127.0/29
10.200.0.0      10.200.254.251  130        0x80000001 0x002675   10.200.0.0/16
172.18.200.1    10.200.254.251  109        0x80000001 0x00B5CB   172.18.200.1/32

                ASBR-Summary Link States (Area 0.0.0.0)

Link ID         ADV Router      Age        Seq#       Checksum
10.189.127.3    10.189.254.242  10         0x80001c30 0xc14a

                Router Link States (Area 1.1.1.1)

Link ID         ADV Router      Age        Seq#       Checksum Link Count
10.189.127.3    10.189.127.3    1707       0x80001d5e 0xa509   1
10.189.254.242  10.189.254.242  10         0x80001ce0 0x8ec2   1

                Net Link States (Area 1.1.1.1)

Link ID         ADV Router      Age        Seq#       Checksum
10.189.127.2    10.189.254.243  70         0x80001c31 0xdb72

                Summary Link States (Area 1.1.1.1)

Link ID         ADV Router      Age        Seq#       Checksum    Route
10.189.254.240  10.189.254.242  371        0x80001cda 0x8a71     10.189.254.240/29
10.189.254.240  10.189.254.243  1813       0x80001cda 0x8476     10.189.254.240/29

                ASBR-Summary Link States (Area 1.1.1.1)

Link ID         ADV Router      Age        Seq#       Checksum
10.189.7.250    10.189.254.242  1442       0x8000154f 0x165e
10.189.7.250    10.189.254.243  1242       0x8000154d 0x1461

                Router Link States (Area 2.2.2.2 [NSSA])

Link ID         ADV Router      Age        Seq#       Checksum Link Count
10.189.7.250    10.189.7.250    1102       0x80012fa1 0x6b32   2
10.189.254.243  10.189.254.243  1552       0x80001ce8 0x164e   1

                Net Link States (Area 2.2.2.2 [NSSA])

Link ID         ADV Router      Age        Seq#       Checksum
10.200.254.241  10.200.254.251  1277 80000001 ef90  0002

                Summary Link States (Area 2.2.2.2 [NSSA])

Link ID         ADV Router      Age        Seq#       Checksum     Route
0.0.0.0         10.200.254.251  1317 80000001 b7b0  0002 0.0.0.0/0
0.0.0.0         10.200.254.252  1317 80000001 b1b5  0002 0.0.0.0/0

                NSSA-external Link States (Area 2.2.2.2 [NSSA])

Link ID         ADV Router      Age  Seq#     CkSum Flag Route         Tag
10.200.1.0      172.18.200.1    365  800011cb 6f90  0031 E2 10.200.1.0/24   0
10.200.2.0      172.18.200.1    1735 800011c7 6c96  0031 E2 10.200.2.0/24   0
10.200.3.0      172.18.200.1    1775 800011c9 5da2  0031 E2 10.200.3.0/24   0

                AS External Link States

Link ID         ADV Router      Age  Seq#     CkSum Flag Route         Tag
0.0.0.0         10.189.7.250    384  800129e9 9a51  0012 E2 0.0.0.0/0       0
2.3.4.0         10.189.7.250    1154 80007a7a 1fe2  0012 E2 2.3.4.0/24      0
10.112.0.0      10.189.7.250    1084 8000d7e3 b31d  0012 E2 10.112.0.0/21   0
'''

record = 0
results = []

for line in CLI_Output.split("\n"):
    # skip empty lines
    if line == "" and record < 2:
        continue

    # if Router Link is in header
    if line.find('Router Link') > -1:
        record = 1
        continue

    # headers
    if record == 1:
        record = 2
        continue

    # If we are here, we are getting the data lines
    if record == 2 and line != "":
        results.append(line)
    elif line == "":
        record = 0

print(results)


Output: 
1

['10.189.7.250    10.189.7.250    1102       0x80012fa1 0x6b32   2', '10.200.254.252  10.200.254.252  97          0x80000003 0x00501E 3', '10.189.127.3    10.189.127.3    1707       0x80001d5e 0xa509   1', '10.189.254.242  10.189.254.242  10         0x80001ce0 0x8ec2   1', '10.189.7.250    10.189.7.250    1102       0x80012fa1 0x6b32   2', '10.189.254.243  10.189.254.243  1552       0x80001ce8 0x164e   1']


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