In Git, you can use the git blame command to determine who last modified or deleted a specific line of code in a file. Here's how you can use it:
git blame <file_path>
Replace <file_path> with the path to the file you're interested in. This command will display each line in the file along with the commit hash, the author of the commit, the date of the commit, and the content of the line.
To find out who deleted a specific line of code, you can add the -L option followed by the line number. For example:
git blame -L <line_number>,<line_number> <file_path>
Replace <line_number> with the line number of the code you're interested in. This command will display information about the commit that last modified the specified line.
If the line was deleted in a commit, the commit information will indicate the author of the commit who deleted the line. If the line still exists in the current version of the file, the commit information will indicate the author who last modified the line.
Keep in mind that if the line was deleted as part of a larger change, you may need to review the context provided by git blame to understand the reason for the deletion and the overall change introduced by the commit.