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#1) see all file in folder. -a show all file include hidden includes .git file
ls -a
#2)remove hidden file using -rf also remove hidden file
rm -rf .git
#3)remove .gitignore if exits .gitignore is not hidden file so we don't need -rf
rm .gitignore
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cd /path/to/folder # Navigate to the folder containing the Git repository
rm -rf .git # Remove the .git directory