The best replacement for command line is gui.

The best alternatives to command line are rated as following:
★★★★★  gui
★★  powershell
★  command prompt
★  gui linux
★  graphical user interface
★  linux command line
★  graphical interface
★  graphic interface
  gui interface

Your alternative for command line is not listed? Suggest!
Speaking about command line, one probably shouldn't forget about spaces path.

Other search terms related to command line and their ratings are:
★★★★★ spaces path
★★★★ path
★★ internet explorer
★ ps
terminal
You have in mind a companion for command line and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of command line in all years. Click on graph for more.
command line
gui
powershell