how to remove a file in git code example

Example 1: how to delete file from git command

git rm --cached file1.txt
git commit -m "remove file1.txt"

Example 2: git remove file

git rm [-f | --force] [-n] [-r] [--cached] [--ignore-unmatch]
	  [--quiet] [--pathspec-from-file=<file> [--pathspec-file-nul]]
	  [--] [<pathspec>…]

Example 3: git delete file

// delete unused file. 
// It will be placed on index area, and been deleted at next commit

git rm file-to-delete.ext