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https://github.com/natelandau/shell-scripting-templates.git
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First commit
This commit is contained in:
Nathaniel Landau
206
lib/setupScriptFunctions.sh
Executable file
206
lib/setupScriptFunctions.sh
Executable file
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#!/usr/bin/env bash
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# ##################################################
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# Shared bash functions used by my mac setup scripts.
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#
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# HISTORY
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# * 2015-01-02 - Initial creation
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#
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# ##################################################
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# hasHomebrew
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# ------------------------------------------------------
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# This function checks for Homebrew being installed.
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# If it is not found, we install it and its prerequisites
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# ------------------------------------------------------
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hasHomebrew () {
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# Check for Homebrew
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if type_not_exists 'brew'; then
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e_error "No Homebrew. Gots to install it."
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seek_confirmation "Install Homebrew?"
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if is_confirmed; then
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# Ensure that we can actually, like, compile anything.
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if [[ ! "$(type -P gcc)" && "$OSTYPE" =~ ^darwin ]]; then
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e_error "XCode or the Command Line Tools for XCode must be installed first."
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seek_confirmation "Install Command Line Tools from here?"
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if is_confirmed; then
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xcode-select --install
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else
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e_error "Please come back after Command Line Tools are installed. Exiting"
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exit 1
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fi
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fi
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# Check for Git
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if type_not_exists 'git'; then
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e_error "Git should be installed. It isn't. Aborting."
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exit 1
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fi
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# Install Homebrew
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ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
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brew tap homebrew/dupes
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brew tap homebrew/versions
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brew tap phinze/homebrew-cask
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else
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e_error "Without Homebrew installed we won't get very far."
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e_error "Exiting"
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exit 1
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fi
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fi
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}
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# brewMaintenance
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# ------------------------------------------------------
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# Will run the recommended Homebrew maintenance scripts
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# ------------------------------------------------------
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brewMaintenance () {
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seek_confirmation "Run Homebrew maintenance?"
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if is_confirmed; then
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brew doctor
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brew update
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brew upgrade
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fi
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}
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# hasCasks
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# ------------------------------------------------------
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# This function checks for Homebrew Casks and Fonts being installed.
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# If it is not found, we install it and its prerequisites
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# ------------------------------------------------------
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hasCasks () {
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if ! $(brew cask > /dev/null); then
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brew install caskroom/cask/brew-cask
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brew tap caskroom/fonts
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fi
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}
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# doInstall
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# ------------------------------------------------------
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# Reads a list of items, checks if they are installed, installs
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# those which are needed.
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#
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# Variables needed are:
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# LISTINSTALLED: The command to list all previously installed items
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# Ex: "brew list" or "gem list | awk '{print $1}'"
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#
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# INSTALLCOMMAND: The Install command for the desired items.
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# Ex: "brew install" or "gem install"
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#
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# RECIPES: The list of packages to install.
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# Ex: RECIPES=(
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# package1
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# package2
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# )
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#
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# Credit: https://github.com/cowboy/dotfiles
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# ------------------------------------------------------
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# Given a list of desired items and installed items, return a list
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# of uninstalled items.
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# Credit: https://github.com/cowboy/dotfiles
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function to_install() {
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local debug desired installed i desired_s installed_s remain
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if [[ "$1" == 1 ]]; then debug=1; shift; fi
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# Convert args to arrays, handling both space- and newline-separated lists.
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read -ra desired < <(echo "$1" | tr '\n' ' ')
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read -ra installed < <(echo "$2" | tr '\n' ' ')
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# Sort desired and installed arrays.
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unset i; while read -r; do desired_s[i++]=$REPLY; done < <(
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printf "%s\n" "${desired[@]}" | sort
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)
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unset i; while read -r; do installed_s[i++]=$REPLY; done < <(
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printf "%s\n" "${installed[@]}" | sort
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)
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# Get the difference. comm is awesome.
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unset i; while read -r; do remain[i++]=$REPLY; done < <(
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comm -13 <(printf "%s\n" "${installed_s[@]}") <(printf "%s\n" "${desired_s[@]}")
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)
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[[ "$debug" ]] && for v in desired desired_s installed installed_s remain; do
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echo "$v ($(eval echo "\${#$v[*]}")) $(eval echo "\${$v[*]}")"
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done
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echo "${remain[@]}"
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}
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# Install the desired items that are not already installed.
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function doInstall () {
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list="$(to_install "${RECIPES[*]}" "$($LISTINSTALLED)")"
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if [[ "$list" ]]; then
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seek_confirmation "Confirm each install before running?"
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if is_confirmed; then
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for item in ${list[@]}
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do
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seek_confirmation "Install $item?"
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if is_confirmed; then
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$INSTALLCOMMAND $item
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fi
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done
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else
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for item in ${list[@]}
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do
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$INSTALLCOMMAND $item
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done
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fi
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else
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e_success "Nothing to install. You've already got them all."
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fi
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}
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# brewCleanup
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# ------------------------------------------------------
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# This function cleans up an initial Homebrew installation
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# ------------------------------------------------------
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brewCleanup () {
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# This is where brew stores its binary symlinks
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binroot="$(brew --config | awk '/HOMEBREW_PREFIX/ {print $2}')"/bin
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# htop
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if [[ "$(type -P $binroot/htop)" && "$(stat -L -f "%Su:%Sg" "$binroot/htop")" != "root:wheel" || ! "$(($(stat -L -f "%DMp" "$binroot/htop") & 4))" ]]; then
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e_header "Updating htop permissions"
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sudo chown root:wheel "$binroot/htop"
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sudo chmod u+s "$binroot/htop"
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fi
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if [[ "$(type -P $binroot/bash)" && "$(cat /etc/shells | grep -q "$binroot/bash")" ]]; then
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e_header "Adding $binroot/bash to the list of acceptable shells"
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echo "$binroot/bash" | sudo tee -a /etc/shells >/dev/null
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fi
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if [[ "$SHELL" != "$binroot/bash" ]]; then
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e_header "Making $binroot/bash your default shell"
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sudo chsh -s "$binroot/bash" "$USER" >/dev/null 2>&1
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e_success "Please exit and restart all your shells."
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fi
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brew cleanup
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}
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# hasDropbox
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# ------------------------------------------------------
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# This function checks for Dropbox being installed.
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# If it is not found, we install it and its prerequisites
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# ------------------------------------------------------
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hasDropbox () {
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# Confirm we have Dropbox installed
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e_arrow "Confirming that Dropbox is installed..."
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if [ ! -e /Applications/Dropbox.app ]; then
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e_error "We don't have Dropbox. Let's get it installed."
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seek_confirmation "Install Dropbox and all necessary prerequisites?"
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if is_confirmed; then
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# Run functions
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hasHomebrew
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brewMaintenance
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hasCasks
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# Set Variables
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local LISTINSTALLED="brew cask list"
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local INSTALLCOMMAND="brew cask install --appdir=/Applications"
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local RECIPES=(dropbox)
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Install
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open -a dropbox
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else
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e_error "Can't run this script. Install Dropbox manually. Exiting."
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exit 0
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fi
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else
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e_success "Dropbox is installed."
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fi
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}
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