Added main script, license, and readme

Create Launcher

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+#!/bin/bash
+#
+# Create Launcher 0.1
+# A simple Nautilus script to create Unity launchers by right-clicking on files
+#
+# by Hasan N. Genc
+
+file="$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS"
+file=${file%$'\n'}
+
+# Make sure only one file has been selected
+if [[ $(printf "$file" | wc -l) > 0 ]]; then
+  zenity --error --text="Do not select more than one file."
+  exit 1
+fi
+
+# Make sure that selected file is an executable
+if ! [[ -x $file ]]; then
+  zenity --error --text="You must select a file which can be executed."
+  exit 1
+fi
+
+# Get the launcher's name
+launcher_name=$(zenity --entry --title="Enter launcher name" --text="Enter name of launcher" --entry-text "${file##*/}" --cancel-label=Quit --width=300)
+
+if [[ $? != 0 ]]; then
+  exit 1
+fi
+
+# Get the launcher's exec command
+launcher_exec=$(zenity --entry --title="Enter command" --text="Enter command to be executed by launcher" --entry-text "\"$file\"" --cancel-label=Quit --width=500)
+
+if [[ $? != 0 ]]; then
+  exit 1
+fi
+
+# Get the launcher's icon
+if zenity --question --text="Do you want to give the launcher a specific icon?"; then
+  launcher_icon=$(zenity --file-selection --title="Select icon (cancel if you want to use default icon)")
+fi
+
+# Create the launcher file using the previously obtained information
+destination="$launcher_name.desktop"
+printf "[Desktop Entry]\nType=Application\nTerminal=false\nName=$launcher_name\nExec=$launcher_exec\nIcon=$launcher_icon" >"$destination"
+
+# If the script tries to create the launcher in a folder that it does not have permission to do so, the previous printf command will fail. In that case, let the user choose where to save the launcher
+if [[ $? != 0 ]]; then
+  zenity --error --text="The launcher cannot be saved in your current directory. Please select a new location to save the launcher."
+
+  destination=$(zenity --file-selection --title="Select where to save launcher" --save --confirm-overwrite --file-filter="All files | *.*" --file-filter="Desktop files (.desktop) | *.desktop" )
+
+  if [[ $? != 0 ]]; then
+    exit 1
+  fi
+
+  if [[ $destination != *.desktop ]]; then
+    destination="$destination.desktop"
+  fi
+fi
+
+until printf "[Desktop Entry]\nType=Application\nTerminal=false\nName=$launcher_name\nExec=$launcher_exec\nIcon=$launcher_icon" >"$destination"; do
+  zenity --error --text="The launcher cannot be saved in this directory. Please select a new location to save the launcher."
+
+  destination=$(zenity --file-selection --title="Select where to save launcher" --save --confirm-overwrite --file-filter="All files | *.*" --file-filter="Desktop files (.desktop) | *.desktop" )
+
+  if [[ $? != 0 ]]; then
+    exit 1
+  fi
+
+  if [[ $destination != *.desktop ]]; then
+    destination="$destination.desktop"
+  fi
+done
+
+# Make the launcher executable
+chmod +x "$destination"
+
+exit 0

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2015 Hasan Nazim Genc
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README

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+
+    Create Launcher 0.1
+
+by Hasan N. Genc
+
+======================
+    OVERVIEW
+======================
+
+"Create Launcher" is a simple Nautilus script used to create Unity launchers (.desktop files) by right-clicking on executable files. Currently, the script only works for non-terminal applications.
+
+To set up the script, copy the "Create Launcher" file to your Nautilus scripts directory (~/.local/share/nautilus/scripts/ for Ubuntu 14.04 and later). Give the script permission to be executed. Finally, make sure to visit the script directory with Nautilus so that your new script will appear on the context menu whenever you right-click a file.
+
+======================
+    DEPENDENCIES
+======================
+
+The only dependency is Zenity, which is installed by default on Ubuntu releases anyway.