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+Basics
+
+- https://www.nobledesktop.com/learn/git/git-branches
+
+	[Git Branches_ List, Create, Switch to, Merge, Push, & Delete (11_2_2023 4_41_42 PM).html](../../../_resources/Git%20Branches_%20List,%20Create,%20Switch%20to,%20Merge,%20Push.html)
+
+- Branches
+  - If you want to push your code to a different branch of the remote repository on Codeberg, you can specify the branch in the git push command. Here's how you can do it:
+
+	Assuming you have already added the remote repository using a command like:
+
+	
+
+	`git remote add origin your-codeberg-repo-url.git`
+
+	You can push your code to a different branch as follows:
+
+	
+
+	`git push origin your-local-branch-name:your-remote-branch-name`
+
+	Here's what each part of the command does:
+
+		your-local-branch-name: Replace this with the name of the local branch you want to push. This is the branch that contains the code you want to deploy.
+
+		your-remote-branch-name: Replace this with the name of the branch in the remote repository (on Codeberg) where you want to push your code.
+
+	For example, if you have a local branch called "feature-branch" and you want to push it to a branch named "production" on Codeberg, you would use the following command:
+
+	
+
+	`git push origin feature-branch:production`
+
+	This command will push the code from your local "feature-branch" to the "production" branch on the remote repository on Codeberg. Make sure the branch names are accurate to avoid any conflicts or errors.
+**to change default branch**
+`git push -u origin --all`
+	
+- undo git add
+  For specific files use
+  `git reset <file>`
+  For all files
+  `git reset HEAD`
+- diff
+  When using diff and we wanna avoid the changes in whitespace bcz of pretty formatting then use
+  `git diff -w`
+  or
+  ` git diff -w --numstat`
+  When using diff filemode ie permissions is different by default in windows and unix machines so when using git diff output can be
+  ```text
+  old mode : 100644
+  new mode : 100755
+  ```
+  So to fix it use
+  `git config core.filemode false`
+  https://stackoverflow.com/questions/1257592/how-do-i-remove-files-saying-old-mode-100755-new-mode-100644-from-unstaged-cha
+ - pull requests
+   1. after cloning the repo(original one) and cd into it fetch the pull request to branch named 'local-branch-name'. name can be anything. 
+     `git fetch origin pull/PR_NUMBER/head:local-branch-name`
+   2. Then switch to `local-branch-name` and check it, if changes are good then merge it by
+		```bash
+		git checkout main # or develop, or another branch
+		git merge local-branch-name
+		 ```
+- to list all files tracked by github use `git ls-files`
+- to push non interactively use this
+found this, this is the way
+`git push https://$GIT_USERNAME:$GIT_TOKEN@github.com/username/repo.git`
+&nbsp;
+
+to have different user and email for repo use this
+```sh
+git config user.name "Your Work Name"
+git config user.email "work@email.com"
+```
+&nbsp;
+
+**clearing .git folder**
+sometimes git folders can become very large. few things to clear is
+to check issues or dangling blobs(uncommited files/data to repo)
+`git fsck --full`
+and to remove dangling blobs
+`git prune`
+
+but if it got commited then
+for untracking
+```sh
+git rm -r --cached bin/
+git rm -r --cached obj/
+```
+and for actual removing
+```sh
+# using filter branch
+git filter-branch --force --index-filter \
+  "git rm --cached --ignore-unmatch path/to/bigfile.zip" \
+  --prune-empty --tag-name-filter cat -- --all
+
+# Clean up refs and gc
+rm -rf .git/refs/original/
+git reflog expire --expire=now --all
+git gc --prune=now --aggressive
+
+# Force push
+git push origin --force --all
+git push origin --force --tags
+```
+
+instead of filter branch, this can be used too, though it needs to be installed `pip install git-filter-repo --break-system-packages`
+```sh
+git filter-repo --path path/to/bigfile.zip --invert-paths
+```
+&nbsp;
+
+**applying patches **
+
+from a file
+`git apply --check ytfetch-403-fix.patch`
+If it doesn't return anything, that's good.
+then
+`git apply ytfetch-403-fix.patch`
+
+create patch with
+`git diff > my_patch.patch`