Comparing two files registering the difference

[Sivakumar Saravanamuthu]

hi

I have requirement to compare local file with remote file. Example I have a copy of standard /etc/hosts  file and I need to compare that file with remote host /etc/hosts file to check the difference. If there is difference it should register it and proceed with next task. I tried various option like diff and stat but unable to get expected result. 

Is there any way I can execute that.

Regards,

Siva

[Stefan Hornburg (Racke)]

With the stat module you should be able to establish whether the files have different checksums. What did you try
exactly?

Regards
Racke

>
> Regards,
> Siva
>
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[Brian Coca]

If you want to 'see the diff' , just use copy in check and diff mode



--
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Brian Coca

[Sivakumar Saravanamuthu]

I resolved it 

 tasks:

  - name: copy hosts for validation file

    copy:

      src: ./templates/hosts

      dest: /tmp/hosts

      owner: root

      group: root

      mode: '0644'

      backup: yes

  - name: compare md5 local copy host file

    stat:

      path: /tmp/hosts

      checksum_algorithm: md5

      get_checksum: yes

    register: originalfile

  - name: compare md5 remote hosts file

    stat:

      path: /etc/hosts

      checksum_algorithm: md5

      get_checksum: yes

    register: remotefile

  - name: Verify host files md5 value

    debug:

      msg: "File Compare hash value of {{ remotefile.stat.checksum }} is same as {{ originalfile.stat.checksum }}."

    failed_when: remotefile.stat.checksum != originalfile.stat.checksum

Thank you.

Regards,

Siva

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