Move Chrome, Safari and iTunes Cache to Ramdisk.

osx_ramdisk.sh

#!/bin/bash

# Size at the end is * 2048 where 2048 = 1 MB, so 1572864 = 768 MB
#DISK=`/usr/bin/hdiutil attach -nobrowse -nomount ram://1572864`
DISK=`/usr/bin/hdiutil attach -nobrowse -nomount ram://2097152`

/usr/sbin/diskutil erasevolume HFS+ "RamDiskCache" $DISK

CACHEDIR="/Volumes/RamDiskCache/$USER"

# Chrome Cache
/bin/rm -rvf ~/Library/Caches/Google/Chrome/*
/bin/mkdir -pv $CACHEDIR/Google/Chrome/Default
/bin/ln -v -s $CACHEDIR/Google/Chrome/Default ~/Library/Caches/Google/Chrome/Default

# Chrome Canary Cache
/bin/rm -rvf ~/Library/Caches/Google/Chrome\ Canary/*
/bin/mkdir -pv $CACHEDIR/Google/Chrome\ Canary/Default
/bin/ln -v -s $CACHEDIR/Google/Chrome\ Canary/Default ~/Library/Caches/Google/Chrome\ Canary/Default

# Safari Cache
/bin/rm -rvf ~/Library/Caches/com.apple.Safari
/bin/mkdir -pv $CACHEDIR/Apple/Safari
/bin/ln -v -s $CACHEDIR/Apple/Safari ~/Library/Caches/com.apple.Safari

# iTunes Cache
/bin/rm -rvf ~/Library/Caches/com.apple.iTunes
/bin/mkdir -pv $CACHEDIR/Apple/iTunes
/bin/ln -v -s $CACHEDIR/Apple/iTunes ~/Library/Caches/com.apple.iTunes

# Spotify Cache
/bin/rm -rvf ~/Library/Caches/com.spotify.client
/bin/mkdir -pv $CACHEDIR/Spotify
/bin/ln -v -s $CACHEDIR/Spotify ~/Library/Caches/com.spotify.client

/usr/bin/chflags hidden /Volumes/RamDiskCache #Hide RamDisk directory