FastTasks

#! /bin/bash
#FastTasks by Applehelpwriter.com, 2012.
#Version 1.2

#changelog
#version 1.2: added confirmation msg upon success for options 8 & 9

# Requirements:
# Needs OS X 10.8, Mountain Lion, but should work on 10.7
# Menu option 8 won't work on 10.6 or earlier

# This script lets you perform 10 common tasks from one menu
# 1. Reveal hidden files in Finder
# 2. Hide hidden files in Finder
# 3. Open the User Library in Finder
# 4. Open the User Library Preferences folder in Finder
# 5. Kill and Relaunch the Finder
# 6. Kill and Relaunch the Dock
# 7. Reset System Preferences to Default (requires restart)...
# 8. Flush DNS Cache (requires Admin password)
# 9. Free system memory (purge)"
# 10. Batch change file extension

#HOW TO USE

# Step 1
# Create a plain text file in text edit and copy the
# entire contents of this file, including these comments, into it.
# Save the script to your desktop as 'FastTasks' without the quote marks
# make sure that it's saved as plain text, not RTF.

# Step 2
# Open Terminal.app and paste the following line without the '#'

# sudo chmod 755 ~/Desktop/FastTasks

# press 'return' on your keyboard
# enter your Admin user password to authorise the change
# - what you just did is turn the plain text script into an
# executable program file.

# Step 3
# Now let's copy the script to somewhere where Bash looks for programs.
# Paste the next line without the # into Terminal.app

# cp ~/Desktop/FastTasks /etc/bin/FastTasks

# then press 'return' on your keyboard.

# Step 4
# Now you can use the script by typing 'FastTasks' in a
# Terminal window or you can run FastTasks by double-clicking
# it in Finder or on the Desktop.
# If the Terminal window remains open after FastTasks has
# completed, change the following settings
# in Terminal's Preferences:

# Preferences > Settings > Shell > When the shell exits...

# Change the drop down menu from 'Don't close the window' to
# 'Close if the shell exited cleanly'.

# END OF NOTES


# START OF SCRIPT
# Define the function for batch file extension changes

function rename_files
{
clear; echo ""
    echo "**** Change file extension ****"
    echo "This utility allows you to change multiple files with one extension"
    echo "to another extension"
    echo "(e.g., change a list of jpg files to tiffs)"
    echo ""
    echo "PREPARATION:"
    echo "Before proceeding, place the files you want to change on the Desktop."
    echo "Ensure there are no other files with the same extension on the Desktop."
    echo ""
    echo "Are the files you want to change on the Desktop?"
    echo -n "Press 1 for 'yes' or Press 2 for 'no'  "
    read text
    if [ "$text" = "1" ]; then
        clear;
        echo "Enter the old file extension or press Ctrl-C to cancel"
        echo -n "(do not include the dot before the extension)... "
        read oldex
        echo "Enter the new file extension or press Ctrl-C to cancel"
        echo -n "(do not include the dot before the extension)... "
        read newex
        echo "Confirm Change $oldex to $newex?"
        echo -n "(press 'enter' to confirm, Ctl-C to escape)"
        read
# command to perform the batch change
        cd ~/desktop; for i in *.$oldex; do mv "$i" "${i/.$oldex}".$newex; done
            #echo "Your files have been successfully changed."
            #else echo "Sorry no files were changed."
            #fi
    else echo "Please move the files to the Desktop before trying again. Thank you."
fi
}

# define function for changing sys prefs to default
# useful if you have problems with system preferences

function sysprefs_to_default
{
clear;
echo "**** Return System Preferences to default values ****"
echo ""
echo "This utility can help solve problems such as System Preference panes not opening"
echo "or only opening after a lengthy spin of the pinwheel..."
echo ""
echo "This utility is harmless, but it will return all your system preferences back"
echo "to default, so you may have to set some system pref choices up again."
echo ""
echo "WARNING - save any unsaved work in open apps before proceeding."
echo ""
echo -n "Press enter to reset System Prefs or Ctl-C to cancel..."
read
rm ~/Library/Preferences/com.apple.systempreferences.plist; clear;
echo "You must restart your mac to complete the change to default preferences."
echo ""
echo "1 = quit FastTasks and shutdown manually"
echo "(choose this if you have unsaved work in open Apps)"
echo ""
echo "2 = quit FastTasks and restart IMMEDIATELY"
echo "(requires Admin password - you could lose any unsaved work)"
echo -n "Enter 1 or 2..."
read answer
case $answer in
    1 ) exit=0
    ;;
    2 ) sudo shutdown -r now
    ;;
    * ) exit =0
esac
}


# Text for the user menu options:

clear;
echo "MENU:"
echo "1  = Reveal hidden files in Finder"
echo "2  = Hide hidden files in Finder"
echo ""
echo "3  = Open the User Library in Finder"
echo "4  = Open the User Library Preferences folder in Finder"
echo ""
echo "5  = Kill and Relaunch the Finder"
echo "6  = Kill and Relaunch the Dock"
echo ""
echo "7  = Reset System Preferences to Default (requires restart)..."
echo ""
echo "8  = Flush DNS Cache (requires Admin password)"
echo "9  = Free system memory (purge)"
echo ""
echo "10 = Batch change file extension..."
echo ""
echo "or press 0 = Exit FastTasks"
echo ""

# Get the user's choice

echo -n "Enter a number between 0 and 10: "
read character


# define the actions for each choice

case $character in
    0 ) Exit=0
    ;;
    1 ) defaults write com.apple.finder AppleShowAllFiles True; killall Finder
    ;;
    2 ) defaults write com.apple.finder AppleShowAllFiles False; killall Finder
    ;;
    3 ) cd ~/Library; open .
    ;;
    4 ) cd ~/Library/Preferences; open .
    ;;
    5 ) killall Finder
    ;;
    6 ) killall Dock
    ;;
    7 ) sysprefs_to_default
    ;;
    8 ) sudo killall -HUP mDNSResponder && echo "DNS Cache flushed!"
    ;;
    9 ) purge && echo "Memory purged!"
    ;;
    10 ) rename_files
    ;;
    * ) clear; echo "Sorry that's not a valid choice. Please try again or press 0 to exit."
esac
exit 0