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#!/bin/bash
#Check if path is not specified, not a full path or help requested. Print help and exit
if [ -z "$1" ] || [ "$1" == "-h" ] || [ "$1" == "--help" ] || [ "$(echo "$1" | cut -c 1)" != "/" ]
then
echo "USAGE: ramdisk [PATH] [BUFFER]"
echo ""
echo " PATH: The location of the file/folder. Must be a FULL PATH"
echo "BUFFER: Specify number of Megabytes larger to make ramdisk (default 1)"
echo ""
echo "EXAMPLE: ramdisk /home/user/Documents/FILE.txt 120"
echo "Will put FILE.txt into a ramdisk with a 120MB buffer size"
exit 3
fi
#Check if buffer size specified
if [ -z "$2" ]
then
#if not, set to 1MB
BUFFER=1000
else
BUFFER=$(( $2 * 1000 ))
fi
#Get size of file/folder in kilobytes
SIZE=$((`du -sk "$1" | cut -f1` + $BUFFER))
#Get available RAM in kilobytes
RAM=$(cat /proc/meminfo | grep MemAvailable | tr -dc '0-9')
#Get name of file/folder in path
NAME=$(basename "$1")
#Remove trailing "/" from path
FILEPATH="${1%/}"
#Is there enough RAM?
if [ "$SIZE" -gt "$RAM" ]
then
echo "NOT ENOUGH RAM!"
echo Avail" |" $(( $RAM / 1000 ))MB
echo Used" |" $(( $SIZE / 1000 ))MB
echo Needed" |" $(( $(($SIZE - $RAM)) / 1000 ))MB
exit 1
else
echo Creating ramdisk for \"$NAME\"
echo At path \"$FILEPATH\"
echo With buffer of $(($BUFFER / 1000))MB
echo Avail" |" $(( $RAM / 1000 ))MB
echo Used" |" $(( $SIZE / 1000 ))MB
echo Free" |" $(( $(($RAM - $SIZE)) / 1000 ))MB
read -p "Is this OK? [y/n] " yn
case $yn in
[Yy]* ) ;;
[Nn]* ) exit 2;;
* ) echo "Please answer yes or no.";;
esac
fi
#Store path for ramdisk-cleanup
echo "$FILEPATH" >> ~/.ramdisk
#Create /ramdisk folder if it doesn't exist
if [ ! -d /ramdisk ]
then
sudo mkdir /ramdisk
fi
#Create folder for the ramdisk
sudo mkdir /ramdisk/"$NAME"
#Create the ramdisk for real
sudo mount -t tmpfs -o size="$SIZE"K tmpfs /ramdisk/"$NAME"
#Make sure it's owned by the current user
sudo chown -R $USER /ramdisk
#Copy file/s to the ramdisk
echo "Copying..."
cp -a "$FILEPATH" /ramdisk/"$NAME"/
#Rename the original file/folder
mv "$FILEPATH" "$FILEPATH"_ORIG
#Create link to ramdisk with original name
ln -s /ramdisk/"$NAME"/"$NAME" "$FILEPATH"
echo "DONE"
#!/bin/bash
#Check if there are any ramdisks to clean
if [ ! -f ~/.ramdisk ]; then
echo Nothing to clean
exit 1
fi
while true
do
echo "Items available for cleanup:"
#List names of Folders in ramdisk history
while read p
do
basename "$(grep "$p" ~/.ramdisk)"
done < ~/.ramdisk
read -p "Which ramdisk to clean? " TARGET
#Get full path from ramdisk history
FILEPATH=$(grep "$TARGET" ~/.ramdisk)
echo will clean \"$TARGET\" at path \"$FILEPATH\"
read -p "Is this OK? [y/n] " yn
case $yn in
[Yy]* ) break;;
[Nn]* ) ;;
* ) echo "Please answer yes or no.";;
esac
done
#Remove contents of ramdisk folder
sudo rm -rf /ramdisk/"$TARGET"/*
#Unmount ramdisk folder
sudo umount /ramdisk/"$TARGET"
#get rid of link
rm "$FILEPATH"
#rename original
mv "$FILEPATH"_ORIG "$FILEPATH"
#remove ramdisk from history
echo "$(grep -v "$FILEPATH" ~/.ramdisk)" > ~/.ramdisk
echo "DONE"
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