What is a detached HEAD and what causes this and how to avoid this?

1.	What is a detached HEAD and what causes this and how to avoid this?
Answer» Detached HEAD indicates that the currently checked-out repository is not a LOCAL branch. This can be caused by the following scenarios: When a branch is a read-only branch and we try to create a COMMIT to that branch, then the commits can be termed as “free-floating” commits not connected to any branch. They would be in a detached state. When we checkout a tag or a specific commit and then we try to perform a new commit, then again the commits would not be connected to any branch. When we now try to checkout a branch, these new commits would be automatically PLACED at the top. In order to ensure that detached state doesn't happen, =instead of checking out commit/tag, we can create a branch emanating from that commit and then we can SWITCH to that newly created branch by USING the command: git checkout -b <<new_branch_name>>. This ensures that a new branch is checkout out and not a commit/tag thereby ensuring that a detached state wouldn't happen.

Answer»

Detached HEAD indicates that the currently checked-out repository is not a LOCAL branch. This can be caused by the following scenarios:

When a branch is a read-only branch and we try to create a COMMIT to that branch, then the commits can be termed as “free-floating” commits not connected to any branch. They would be in a detached state.
When we checkout a tag or a specific commit and then we try to perform a new commit, then again the commits would not be connected to any branch. When we now try to checkout a branch, these new commits would be automatically PLACED at the top.

In order to ensure that detached state doesn't happen, =instead of checking out commit/tag, we can create a branch emanating from that commit and then we can SWITCH to that newly created branch by USING the command: git checkout -b <<new_branch_name>>. This ensures that a new branch is checkout out and not a commit/tag thereby ensuring that a detached state wouldn't happen.

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