Hi All

I have a flat text file. Each line in it contains a "/full path/filename". The last three columns are predictable, but directory depth of each line varies.

I want to sort on the last three columns, starting from the last, 2nd last and 3rd last. In that order. The last three columns have a constant column width:

Last col(6): 24h time 0000.Z -> 2300.Z (compressed file)
2nd Last col(3}: Day of Year, 001 -> 365 (366 in leap years)
3rd Last col(4): Year

I'll explain with an example:

- desired sort key: last col, 2nd last col, 3rd last col

Example: (unsorted)

As you can see, the number of columns in this example vary, however, regardless the number of columns, I would like to sort the lines based on last, 2nd last & 3rd last columns, the results should look like this:

Perhaps an awk + sort command line combo will do the trick, but I'm Google'd out on searching for an answer.

Any help would be greatly appreciated.

Tks,
Jake.