Delete All File Linux By Name

You don't even need to use rm in this case if you are afraid. Use find:

find . -name "*.bak" -type f -delete

But use it with precaution. Run first:

find . -name "*.bak" -type f

to see exactly which files you will remove.

Also, make sure that -delete is the last argument in your command. If you put it before the -name *.bak argument, it will delete everything.