Is there a hdfs command to list files in HDFS directory as per timestamp

Question

Is there a hdfs command to list files in HDFS directory as per timestamp, ascending or descending? By default, hdfs dfs -ls command gives unsorted list of files.

When I searched for answers what I got was a workaround i.e. hdfs dfs -ls /tmp | sort -k6,7. But is there any better way, inbuilt in hdfs dfs commandline?

Answer 1

No, there is no other option to sort the files based on datetime.
If you are using hadoop version < 2.7, you will have to use sort -k6,7 as you are doing:

hdfs dfs -ls /tmp | sort -k6,7 

And for hadoop 2.7.x ls command , there are following options available :

Usage: hadoop fs -ls [-d] [-h] [-R] [-t] [-S] [-r] [-u] <args>  Options: -d: Directories are listed as plain files. -h: Format file sizes in a human-readable fashion (eg 64.0m instead of 67108864). -R: Recursively list subdirectories encountered. -t: Sort output by modification time (most recent first). -S: Sort output by file size. -r: Reverse the sort order. -u: Use access time rather than modification time for display and sorting. 

So you can easily sort the files:

hdfs dfs -ls -t -R (-r) /tmp