Sort -t: -k1


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Sort -t: -k1
# 1  
Sort -t: -k1

My file1.txt looks like below:
Code:
Feb 03 15:58:27 2020
Feb 03 16:01:23 2020
Feb 03 16:11:29 2020
Feb 04 11:01:49 2020
Jan 20 16:27:38 2020
Jan 20 16:29:51 2020
Jan 20 16:44:39 2020
Jan 20 16:56:41 2020

I tried: sort -t: -k1 and result below:
Code:
Feb 03 15:58:27 2020
Feb 03 16:01:23 2020
Feb 03 16:11:29 2020
Feb 04 11:01:49 2020
Jan 20 16:27:38 2020
Jan 20 16:29:51 2020
Jan 20 16:44:39 2020
Jan 20 16:56:41 2020

I'd like to have Feb 04 11:01:49 2020 as the last line.
Thanks in advance!

--- Post updated at 07:02 PM ---

I tried sort -nrz and result below. close but not in order:

Code:
Jan 20 16:56:41
Feb 03 16:11:29
Jan 20 16:27:38
Jan 20 16:29:51
Feb 03 15:58:27
Feb 03 16:01:23
Jan 20 16:44:39
Feb 04 11:01:49

Moderator's Comments:
Mod Comment Please always do wrap your samples in CODE TAGS as per forum rules.

Last edited by rbatte1; 02-10-2020 at 01:58 PM..
# 2  
To sort dates it works best to convert them to epoch seconds - the number of seconds since Jan 1 970. This code adds an epoch time sorts based on the epoch time, then prints the original minus the seconds: this assumes some kin of linux OS -
Code:
while read dt 
do   
   echo $(date -d "$dt" +%s) $dt;    
 done <  file | sort -k1n | awk '{printf("%s %s %s %s\n", $2, $3, $4, $5) }'

Called a tag sort.
I get this output:
Code:
Jan 20 16:27:38 2020
Jan 20 16:29:51 2020
Jan 20 16:44:39 2020
Jan 20 16:56:41 2020
Feb 03 15:58:27 2020
Feb 03 16:01:23 2020
Feb 03 16:11:29 2020
Feb 04 11:01:49 2020

--- Post updated at 17:16 ---

@Drl - one of our senior people, may mention getting a linux package for date operations, one of the commands is "dsort" which does exactly what the code above does. Hopefully he will mention where to download it. I do not know
These 2 Users Gave Thanks to jim mcnamara For This Post:
# 3  
Some sort versions - my is

Code:
$ sort --version
sort (GNU coreutils) 8.30

- offer the option (man sort)
Quote:
-M, --month-sort
compare (unknown) < 'JAN' < ... < 'DEC'
so it would yield
Code:
$ sort -M file
Jan 20 16:27:38 2020
Jan 20 16:29:51 2020
Jan 20 16:44:39 2020
Jan 20 16:56:41 2020
Feb 03 15:58:27 2020
Feb 03 16:01:23 2020
Feb 03 16:11:29 2020
Feb 04 11:01:49 2020

These 2 Users Gave Thanks to RudiC For This Post:
# 4  
Using RudiC's suggestion of -M , using GNU sort
Code:
sort -k4n -k1,1M -k2,3n file

Would complete the sort.
This User Gave Thanks to Scrutinizer For This Post:
# 5  
sort -k4n -k1,1M -k2,3n file worked perfectly. Thank you so much!

Last edited by Scrutinizer; 02-08-2020 at 08:24 AM.. Reason: icode tags
# 6  
Hi.
Quote:
Originally Posted by jim mcnamara
...
@Drl - one of our senior people, may mention getting a linux package for date operations, one of the commands is "dsort" which does exactly what the code above does. Hopefully he will mention where to download it. I do not know
The code is available in some repositories (I just installed it in a VM for Debian Buster), and also at github, as newer versions 0.4.3 .. 0.4.7:
Code:
dateutils.dsort Sort contents of FILE chronologically. (man)
Path    : /usr/bin/dateutils.dsort
Package : dateutils
Home    : http://www.fresse.org/dateutils
Version : 0.3.1
Type    : ELF 64-bit LSB shared object, x86-64, version 1 ( ...)
Help    : probably available with -h,--help
Home    : https://github.com/hroptatyr/dateutils (doc)

This is from my system:
Code:
OS, ker|rel, machine: Linux, 3.16.0-7-amd64, x86_64
Distribution        : Debian 8.11 (jessie)

ALthough this has been solved, if I get some time I'll try to post a solution with dateutils ... cheers, drl
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #495
Difficulty: Easy
Blocks of code cannot be nested within each other to form sub-blocks.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Use sort to sort numerical column

How to sort the following output based on lowest to highest BE? The following sort does not work. $ sort -t. -k1,1n -k2,2n bfd.txt BE31.116 0s 0s DOWN DAMP BE31.116 0s 0s DOWN DAMP BE31.117 0s 0s ... (7 Replies)
Discussion started by: sand1234
7 Replies

2. UNIX for Beginners Questions & Answers

Difference of Sort -n -k2 -k3 & Sort -n -k2,3

Hi, Could anyone kindly show me a link or explain the difference between sort -n -k2 -k3 & sort -n -k2,3 Also, if I like to remove the row with repetition at both $2 and $3, Can I safely use sort -u -k2 -k3 Example; 100 20 30 100 20 30 So, both $2 and $3 are same and I... (2 Replies)
Discussion started by: Indra2011
2 Replies

3. Shell Programming and Scripting

Sort help: How to sort collected 'file list' by date stamp :

Hi Experts, I have a filelist collected from another server , now want to sort the output using date/time stamp filed. - Filed 6, 7,8 are showing the date/time/stamp. Here is the input: #---------------------------------------------------------------------- -rw------- 1 root ... (3 Replies)
Discussion started by: rveri
3 Replies

4. Shell Programming and Scripting

Help with sort word and general numeric sort at the same time

Input file: 100%ABC2 3.44E-12 USA A2M%H02579 0E0 UK 100%ABC2 5.34E-8 UK 100%ABC2 3.25E-12 USA A2M%H02579 5E-45 UK Output file: 100%ABC2 3.44E-12 USA 100%ABC2 3.25E-12 USA 100%ABC2 5.34E-8 UK A2M%H02579 0E0 UK A2M%H02579 5E-45 UK Code try: sort -k1,1 -g -k2 -r input.txt... (2 Replies)
Discussion started by: perl_beginner
2 Replies

5. Shell Programming and Scripting

Alternate to sort --random-sort

sort --random-sort The full command is path=`find /testdir -maxdepth 1 -mindepth 1 -type d | ***Some sort of sort function*** | head -1` I have a list I want to randomly sort. It works fine in ubuntu but on a 'osx lion' sort dosen't have the --random-sort option. I don't want to... (5 Replies)
Discussion started by: digitalviking
5 Replies

6. Shell Programming and Scripting

Help to sort out... Possible use of sort command

I have an input like 4.3.6.66 4.3.6.67 4.3.6.70 4.3.6.25 4.3.6.15 4.3.6.54 4.3.6.44 4.3.6.34 4.3.6.24 4.3.6.14 4.3.6.53 4.3.6.43 4.3.6.49 4.3.6.33 4.3.6.52 4.3.6.19 4.3.6.58 4.3.6.42 (5 Replies)
Discussion started by: dnam9917
5 Replies

7. Shell Programming and Scripting

Is it Possible to sort a list of hexadecimal numbers using "sort" command?

Hello Everybody :) !!!. i have question in mind, is it possible to sort a list of hexadecimal numbers using "sort" command? (9 Replies)
Discussion started by: Kesavan
9 Replies

8. UNIX for Advanced & Expert Users

Script to sort the files and append the extension .sort to the sorted version of the file

Hello all - I am to this forum and fairly new in learning unix and finding some difficulty in preparing a small shell script. I am trying to make script to sort all the files given by user as input (either the exact full name of the file or say the files matching the criteria like all files... (3 Replies)
Discussion started by: pankaj80
3 Replies

9. Shell Programming and Scripting

How to Sort Floating Numbers Using the Sort Command?

Hi to all. I'm trying to sort this with the Unix command sort. user1:12345678:3.5:2.5:8:1:2:3 user2:12345679:4.5:3.5:8:1:3:2 user3:12345687:5.5:2.5:6:1:3:2 user4:12345670:5.5:2.5:5:3:2:1 user5:12345671:2.5:5.5:7:2:3:1 I need to get this: user3:12345687:5.5:2.5:6:1:3:2... (7 Replies)
Discussion started by: daniel.gbaena
7 Replies

10. Shell Programming and Scripting

sort

I check the man page but I still cannot see what this command is supposed to do sort +5 -6 <file> It just seems to sort the file as normal?? Thanks Calypso (3 Replies)
Discussion started by: Calypso
3 Replies

Featured Tech Videos