Sponsored Content
Operating Systems OS X (Apple) Sorting scientific numbers with sort Post 302944698 by Scrutinizer on Thursday 21st of May 2015 10:46:21 AM
Old 05-21-2015
Quote:
Originally Posted by plebs
Hey everybody,

I'm trying to sort scientific numbers in a descending order using the command
Code:
sort -gr <file>

.

It works fine on a Linux-Server, but doesn't on my macbook pro with OS X 10.10.3 (Yosemite).
I tried to sort the following:
Code:
6.38e-10
6.38e-10
1.80e-11
1.00e-10
1.48e-12

And got this:
Code:
6.38e-10
6.38e-10
1.80e-11
1.48e-12
1.00e-10

Instead of this:
Code:
6.38e-10
6.38e-10
1.00e-10
1.80e-11
1.48e-12

Does anyone have an idea why mac is not recognizing the scientific notation despite the -g option?

Many thanks!
Strange, I cannot reproduce this on OSX 10.10.3 (Yosemite). Sort works as designed and it appears to be GNU sort:

Code:
$ sort -gr file
6.38e-10
6.38e-10
1.00e-10
1.80e-11
1.48e-12

$ sort -nr file
6.38e-10
6.38e-10
1.80e-11
1.48e-12
1.00e-10

$ sort --version
sort (GNU coreutils) 5.93
Copyright (C) 2005 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and Paul Eggert.

$ pkgutil --file-info  /usr/bin/sort
volume: /
path: /usr/bin/sort

pkgid: com.apple.pkg.BaseSystemBinaries
pkg-version: 10.10.0.1.1.1411459885
[..]

What happens when you enter:
Code:
type sort


Last edited by Scrutinizer; 05-21-2015 at 11:54 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to add/multiply numbers with scientific notation (2.343e-5)

Hi, I'm need to do some addition and multiplication of scientific nottaion numbers, in the form 34.23423e-10 for example. I was echoing the list of numbers to stdout, then using bc -l, then I find that this does not seem to work for numbers with exponential notation. Could someone help me out... (1 Reply)
Discussion started by: chugger06
1 Replies

2. 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

3. UNIX for Dummies Questions & Answers

sorting numbers with sort -n

Looking for help for sort, I learned that for sorting numbers I use: sort -n but it seems that that is not enough when you have numbers like 0.2000E+7 for example, sort -n will not worry about the E+7 part, and will just sort the numbers like 0.2000. Exapmle: cat example.txt .91000E+07... (9 Replies)
Discussion started by: cosmologist
9 Replies

4. Shell Programming and Scripting

Sorting with header and mixed numerals (scientific and decimal) | awk

Assoc.txt CHR SNP BP A1 TEST NMISS OR STAT P 1 rs2980319 766985 A ADD 4154 1.024 0.1623 0.8711 1 rs2980319 766985 A AGECAT 4154 1.371 6.806 1.003e-11 1 ... (6 Replies)
Discussion started by: genehunter
6 Replies

5. 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

6. Shell Programming and Scripting

Sorting numbers containing symbols

hi all, i need help on sorting data. i have a file as below /home/oracle $ cat 234.txt +1234 -2356 -1001 +231 0023 -0987 +19000 65487 6 after sorting i want the output as below -2356 -1001 (2 Replies)
Discussion started by: mahesh1987
2 Replies

7. UNIX for Dummies Questions & Answers

Sorting files ending in numbers with "sort"

I have a group of files that I need to be sorted by number. I have tried to use the sort command without any luck. ls includes* includes1 includes10 includes11 includes12 includes2 includes3 includes4 includes5 includes6 includes7 includes8 includes9 I have tried ls includes*... (6 Replies)
Discussion started by: newbie2010
6 Replies

8. Shell Programming and Scripting

Sorting mixed numbers and letters

Hello, I have a file such as this: chr1 chr2 chr1 chr2 chr3 chr10 chr4 chr5 chrz chr1AI want to sort it, I use this command: sort -k1 -th -n testfilebut I get this output, how can I fix this? chr1 chr1 chr10 chr1A chr2 chr2 (3 Replies)
Discussion started by: Homa
3 Replies

9. Shell Programming and Scripting

Help: Sorting the numbers without using sort command

Hi, I've got two arrays 1 3 5 7 2 4 6 8 and i need to write a shell script to get the output 1 2 3 4 5 6 7 8 without using sort or bubble sort. (1 Reply)
Discussion started by: web2moha
1 Replies

10. Shell Programming and Scripting

Help with Sorting numbers in a file

Hi Guys, Would appreciate some help on sorting numbers on a file using the sort command. I have tried this and it's not sorting properly. what am i missing? cat testing_sort 1:21 4:18 2:17 7:14 9:19 3:12 0:16 8:13 5:20 6:15 10:11 sort -t: -nk1,1 -nk2,2 testing_sort (4 Replies)
Discussion started by: Apollo
4 Replies
All times are GMT -4. The time now is 06:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy