use rm at ease!
1. First, copy the file 'remove.sh' into your folder which pathinfo is $DIR ( e.g. '~/shell/' ).
2. Open the file `~/.bashrc` or `~/.zshrc` or other one and add `alias rm='sh ~/shell/remove.sh'` in the end. If you don't know which shell is in use, try `echo $SHELL`.
Then, when you remove a file, it will be moved into the folder $HOME/.trash. Notice that when a file or folder in $HOME/.trash isn't visited for a month, it will be really removed from your disk when you use rm! You can alter the shell to change this yourself.
sh -c "$(wget --no-check-certificate https://raw.githubusercontent.com/lcalca1/trm/master/install_trm.sh -O -)"
or
sh -c "$(curl -fsSL https://raw.githubusercontent.com/lcalca1/trm/master/install_trm.sh)"
After that if it still doesn't work, try source $HOME"/."${SHELL##*/}"rc".