alias remove-old-kernels='dpkg -l linux-{image,headers}-* | awk '\''/^ii/{print }'\'' | egrep '\''[0-9]+\.[0-9]+\.[0-9]+'\'' | grep -v 4.4.0-79 | xargs sudo apt-get -y purge'
alias remove- old-kernels= 'dpkg -l linux-{ image,headers} -* | awk '\''/^ii/{print }'\'' | egrep '\''[0- 9]+\.[0- 9]+\.[0- 9]+'\'' | grep -v 4.4.0-79 | xargs sudo apt-get -y purge'