#!/bin/bash
#Overwrite /root/.audacity and ~/.audacity settings with specially saved backup
#to ensure temp directory is set to /home/user/.audacity_temp
sudo cp /home/user/.audacity_backupPrefs /root/.audacity
sudo chmod 777 /root/.audacity
sudo cp /home/user/.audacity_backupPrefs /home/user/.audacity
sudo chmod 777 /home/user/.audacity
#Get name of SD card in card slot - should be first directory
DIRECTORY="/home/user/MMC-SD"
for file in $DIRECTORY/*
do
carddir=$file
break
done
#Test if carddir exists
if !(test -d $carddir)
then
kdialog --msgbox "No SD Card found! \n\n Audacity will not launch."
exit
fi
#Test if SD Card is writable (in case of accidental lock)
#2>/dev/null suppresses all error messages
if !(touch $carddir 2>/dev/null)
then
kdialog --msgbox "Cannot write to SD Card - is it locked?? \n\n Audacity will not launch."
exit
fi
#Check if there is enough disk space - at least 2GB, ie. 2097152 KB
#the backtick ` executes the command
#$4 refers to the 4th field
enough=`df $carddir | grep '/dev' | awk '{print (int($4)>2097152)}'`
if [ $enough == '0' ]
then
kdialog --msgbox "SD Card has less than 2GB available space for recording. \n\n Audacity will not launch"
exit
fi
#create .audacity_temp/ in SD Card
tempdir=$carddir'/.audacity_temp'
if !(test -d $tempdir)
then
sudo mkdir $tempdir
sudo chmod 777 $tempdir
fi
#create symbolic link to /home/user/.audacity_temp
#must remove old link first
sudo rm /home/user/.audacity_temp
sudo ln -s $tempdir /home/user/.audacity_temp
sudo chmod 777 /home/user/.audacity_temp
#Set microphone volume to 20% (else feedback), capture mode on, unmute
sudo amixer -c 0 set Capture 20% cap unmute
#Check whether AC power is on
powerStatus=$(awk '{ print $2 }' /proc/acpi/ac_adapter/AC0/state)
if [ $powerStatus != "on-line" ]
then
kdialog --msgbox "POWER IS NOT SWITCHED ON! \n\n Audacity will not launch."
exit
fi
#must run audacity with 'sudo' or else will have file writing permission error
sudo audacity
exit 0
