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Git add only part of a file

When modifying a file in a project, you don’t have to include every changes. You can select what changes in a file to include or not with Staging Patches This can be useful to exclude debugging print statement for example.

1. Use the -p flag along with add:

   git add -p [file]

2. This will open an interactive prompt, for each section (or ‘hunk’) it will ask what you want to do.

   press ? for a list of possibility.

3. Press:
   1. y: to add the hunk
   2. n: to not add it
   3. s: to split it. For each element, you will be prompted for what you want to do
4. To see the changes staged:

   git diff –cached

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