Unlikely to help someone, but anyway.
Archive of posts tagged sorting
Remove duplicates, but keeping only the last occurrence
Again on IRC, somebody asked how to remove duplicates from a file, but keeping only the last occurrence of each item. The classic awk idiom awk '!a[$0]++' prints only the first instance of every line. So if the input is, for example foo bar baz foo xxx yyy bar the "normal" output (ie using the […]
Sorting with awk
How to sort data in awk
