I have committed a lot of terrible mistakes involving rm, so I coded this script to prevent any further accidents.

trash.js

#!/usr/bin/env node

var fs = require('fs');

var help = "Usage : trash [-lhx] files...\n\t-l : list trashcan\n\t-x : cancel (files: timestamp)\n\t-h : help";
var trash = process.env['HOME'] + "/.trash/";

(function(argv, log, error) {
  argv = require('optimist').parse(argv);
  if (typeof argv.l === 'string') {
    argv._.unshift(argv.l);
    argv.l = true;
  }
  if (typeof argv.x === 'string') {
    argv._.unshift(argv.x);
    argv.x = true;
  }

  if (!argv.l && (argv._.length == 0 || argv.h)) {
    log(help);
    return;
  }

  var timestamp, rmfolder;

  if (argv.l) {
    log(fs.readdirSync(trash).join(' '));
    return;
  }

  if (argv.x) {
    timestamp = argv._[0];
    rmfolder = trash + timestamp + '/';
    if (!fs.existsSync(rmfolder)) {
      error("Error: %s does not exist!", rmfolder);
      return;
    }
    fs.readdirSync(rmfolder).map(function(item) {
      log("Recovering: %s", item);
      fs.renameSync(rmfolder + item, item);
    });
    fs.rmdirSync(rmfolder);
    return;
  }


  timestamp = Date.now().toString(36).toLowerCase();
  rmfolder = trash + timestamp + '/';
  log("Trash can ID: %s", timestamp);
  fs.mkdirSync(rmfolder);

  for (var i = 0; i < argv._.length; i++) {
    fs.renameSync(argv._[i], rmfolder + argv._[i]);
  }
}(process.argv.slice(2), console.log.bind(console), console.error.bind(console)));

PS. mkdir ~/.trash before use this.

PPS. I know that there are some trashcan utilities.