Optimizations Raspberry Pi

# Remove wolfram-engine (around 460MB space)
sudo apt-get remove wolfram-engine

# Disable Man indexing
sudo vi  /etc/cron.weekly/man-db
exit 0 # add this in first line

sudo vi  /etc/cron.daily/man-db
exit 0 # add this in first line

# Remove temporary hw-clock
sudo vi /etc/cron.hourly/fake-hwclock
exit 0 # add this in first line

# Add tmpfs in fstab
tmpfs    /var/tmp    tmpfs    defaults,noatime,nosuid,size=30m    0 0
tmpfs    /var/log    tmpfs    defaults,noatime,nosuid,mode=0755,size=50m    0 0
tmpfs    /var/run    tmpfs    defaults,noatime,nosuid,mode=0755,size=2m    0 0
tmpfs    /var/lib/sudo    tmpfs    defaults,noatime,nosuid,mode=0755,size=2m    0 0
tmpfs    /var/spool/mqueue    tmpfs    defaults,noatime,nosuid,mode=0700,gid=12,size=30m    0 0
tmpfs    /tmp    tmpfs    defaults,noatime,nosuid,mode=1777,size=30m    0 0
# for motion capture (optional)
tmpfs  /mnt/motion_tmpfs  tmpfs   defaults,noatime,size=120M,mode=0777 0 0 

# Combine /tmp and /var/tmp

cd /var
sudo rmdir tmp
sudo ln -s /tmp .