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arcilli · Jul 8, 2022 · 65b0e6f · 65b0e6f
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diff --git a/resources/aws.md b/resources/aws.md
@@ -86,3 +86,9 @@ aws ec2 authorize-security-group-ingress \
     --port 80 \
     --cidr 0.0.0.0/0
 ```
+
+### RDS
+
+* Encryption in PostgreSQL: `rds.force_ssl=1 (parameter groups)`
+* Encryption in MySQL: `GRANT USAGE ON *.* TO 'mysqluser'@'%' REQUIRE SSL;`
+
diff --git a/resources/git.md b/resources/git.md
@@ -47,3 +47,8 @@ Name | Comments
 git revert --no-commit X..HEAD
 git commit
 ```
+
+#### References
+
+* All references in current repository: `find .git/refs/`
+* Update master reference: `git update-ref refs/heads/master <SOME_COMMIT>`
diff --git a/resources/github.md b/resources/github.md
@@ -0,0 +1,29 @@
+# GitHub
+
+## Common Issues
+
+* 'can't sync because main is not tracking [PROJECT NAME]'
+
+This happens the branch is no longer tracking main from upstream. Can be fixed with this command: `git push --set-upstream origin main`.
+
+## Cheat Sheet
+
+### Repository
+
+* Clone repository: `gh clone <REPO NAME>`
+* Sync your fork from source repo: `gh repo sync --source <USERNAME>/<REPONAME>`
+
+### Pull Requests
+
+* Create PR: `gh pr create --title "Some Pull Request ;)`
+* List PRs: `gh pr list`
+* Change to PR (aka checkout): `gh pr checkout <PR NUMBER>`
+* Update PR: `git push`
+
+### CI
+
+* List builds/workflow runs: `gh run list`
+
+### Rebase
+
+* Rebase current branch commits on top of latest changes in main branch: `git rebase origin/main`
diff --git a/resources/linux.md b/resources/linux.md
@@ -111,6 +111,11 @@ sudo ausearch -m avc -m user_avc -m selinux_err -m user_selinux_err -i -ts today
 * Sort files by size: `ls -l | sort -nk5`
 * Find broken links: `find /some/path -type l -exec test ! -e {} \; -print`
 
+#### YAML
+
+* Validate YAML file with Ruby: `ruby -ryaml -e "p YAML.load(STDIN.read)" < some_file.yaml`
+* Validate YAML file with Python: `pip install pyyaml; python -c 'import yaml, sys; print(yaml.safe_load(sys.stdin))' < some_file.yaml`
+
 #### Misc
 
 * Generate 8 digit random number: `shuf -i 9999999-99999999 -n 1`

diff --git a/resources/python.md b/resources/python.md
@@ -43,14 +43,15 @@ Megha Mohan | [Mutable vs Immutable Objects in Python](https://medium.com/@megha
 Kenneth Reitz | [The Hitchhiker’s Guide to Python](http://docs.python-guide.org/en/latest) | | |
 Kenneth Reitz | [Serialization](https://docs.python-guide.org/scenarios/serialization/) | | |
 
-## Frameworks & Tools
+## Libraries, Frameworks & Tools
 
 Name | Description
 :------:|:-------:
 [Natural Language Toolkit](https://www.nltk.org)  | Platform for language processing programming |
 [Flask](http://flask.pocoo.org)  | Web microframework based on Werkzeug, Jinja 2
 [Django](https://www.djangoproject.com)  | Web framework with batteries included
 [Mypy](http://mypy-lang.org) | Static type checker
+[Pandas](https://pandas.pydata.org) | "open source data analysis and manipulation tool"
 
 ### Cheat Sheet
 
@@ -73,6 +74,18 @@ with Connection(host) as conn:
     ...
 ```
 
+#### Dictionaries
+
+* Define dictionary: `some_dict = {'first_number': 2017, 'second_number': 2022}`
+* Add item to dictionary: `some_dict['third_number'] = 1991`
+* Remove last item: `some_dict.popitem()`
+* Remove item by key: `some_dict.pop("third_number")`
+* Get all keys without values: `some_dict.keys()`
+* Get all values without keys: `some_dict.values()`
+* Access item: `some_dict['first_number']` or `some_dict.get('second_number')`
+* Number of items in the dictionary: `len(some_dict)`
+* Update value of a certain key: `some_dict.update({"first_number": 02017})
+
 ## Python Checklist
 
 <div align="center"><img src="images/python_map.png"></div><hr/>