robotwholearned

history | awk '{CMD[$2]++;count++;}END { for (a in CMD) print CMD[a] " " CMD[a]/count*100 "% " a;}'

#or fully
history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl |  head -n10

robotwholearned

/*Problem Definition
 
 Imagine that you are a developer with the Lowe's iOS team.
 The team has been tasked with launching a new product suggestion service.
 
 The suggestion logic is based on the following rules:
 •	A customer should only be suggested to purchase a product that they have not bought themselves.
 •	A customer should only be suggested to purchase a product that their friends have purchased
 •	The suggestion order should be driven by how many friends have purchased the same item
 •If multiple friends purchased the same item, it should be higher in the suggestions than a product that only one friend owns.