Rename the script
Just combine all scripts into the single file
Create the new file as dotfiles.sh
Add the "dotfiles" section in dotfiles.sh
Rename variables
Clear up "dotfiles" section
Add the "Which Bash" section
Add the "Preferences" section
Replace function `echo_error` to `echo_if_error`
Add the "Homebrew" section
Add the "Homebrew formulae" section
Update `echo_done` function
Clear up "Dotfiles" section
Fix a condition
Add PATH for installing processes
Clear up dotfiles.sh
Change the expression when aborting
Clear up order of processing
Add a heading when outdated formulae are exist
Add initializing gem and npm provided Homebrew