-apt-cache search libvala | grep '\-dev' | sort -n -r | grep -v valadoc | head -n1 | awk ' { print "sudo apt-get install " $1 }' | sh
+apt-cache search '^valac-[0-9.]+$' | sort -n -r | head -n 1 | awk ' { print "sudo apt-get install " $1 }' | sh
+apt-cache search '^valac-[0-9.]+-vapi$' | sort -n -r | head -n 1 | awk ' { print "sudo apt-get install " $1 }' | sh
+apt-cache search libvala-[0-9.]+-dev$' | sort -n -r | head -n1 | awk ' { print "sudo apt-get install " $1 }' | sh