View source for Snapshots:Example

Note that in this example, the directory <code>.snapshot</code> could also be <code>.zfs/snapshot</code> depending on the filer serving your host. You can try to 'ls' one and if it doesn't exist, try the other.

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Changing to my virtual environment directory.
<pre>
username@host:~/virtualenv$ pwd
/nfshomes/username/virtualenv
</pre>

I see that I have a python file called  '''virtualenv.py'''.
<pre>
username@host:~/virtualenv$ ls
appveyor.yml  bin               docs         MANIFEST.in  scripts    setup.py  tox.ini              virtualenv.py
AUTHORS.txt   CONTRIBUTING.rst  LICENSE.txt  README.rst   setup.cfg  tests     virtualenv_embedded  virtualenv_support
</pre>
<pre>
username@host:~/virtualenv$ ls -lah virtualenv.py
-rwxrwxr-x. 1 username username 98K Jun 12 13:54 virtualenv.py
</pre>

I will remove it from the current file system.
<pre>
username@host:~/virtualenv$ rm virtualenv.py
</pre>

As you can see it no longer is there.
<pre>
username@host:~/virtualenv$ ls
appveyor.yml  bin               docs         MANIFEST.in  scripts    setup.py  tox.ini              virtualenv_support
AUTHORS.txt   CONTRIBUTING.rst  LICENSE.txt  README.rst   setup.cfg  tests     virtualenv_embedded
</pre>

I am going to go into the most recent hourly snapshot, in this case: '''hourly_2018_06_15__12_00'''
<pre>
username@host:~/virtualenv$ ls /nfshomes/username/.snapshots
daily_2018_06_13__00_00  hourly_2018_06_14__04_00  hourly_2018_06_14__16_00  hourly_2018_06_15__08_00
daily_2018_06_14__00_00  hourly_2018_06_14__08_00  hourly_2018_06_14__20_00  hourly_2018_06_15__12_00
daily_2018_06_15__00_00  hourly_2018_06_14__12_00  hourly_2018_06_15__04_00  weekly_2018_06_09__00_00
</pre>
<pre>
username@host:~/virtualenv$ cd /nfshomes/username/.snapshots/hourly_2018_06_15__12_00/virtualenv
</pre>

As you can see the file is still here.
<pre>
username@host:~/.snapshots/hourly_2018_06_15__12_00/virtualenv$ ls
appveyor.yml  bin               docs         MANIFEST.in  scripts    setup.py  tox.ini              virtualenv.py
AUTHORS.txt   CONTRIBUTING.rst  LICENSE.txt  README.rst   setup.cfg  tests     virtualenv_embedded  virtualenv_support
</pre>

I copy it back to the original directory.
<pre>
username@host:~/.snapshots/hourly_2018_06_15__12_00/virtualenv$ cp virtualenv.py /nfshomes/username/virtualenv/
</pre>

Change back to the original directory.
<pre>
username@host:~/.snapshots/hourly_2018_06_15__12_00/virtualenv$ cd /nfshomes/username/virtualenv/
</pre>

And it is back.
<pre>
username@host:~/virtualenv$ ls
appveyor.yml  bin               docs         MANIFEST.in  scripts    setup.py  tox.ini              virtualenv.py
AUTHORS.txt   CONTRIBUTING.rst  LICENSE.txt  README.rst   setup.cfg  tests     virtualenv_embedded  virtualenv_support
</pre>

[[Category:Snapshots]]
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