04-19-2012
How to sort version numbers?
I would like to know how to sort version numbers, using bash or perl. I would like to sort file names that are program names with version numbers and extensions, such as hello-0.2.3.tar.gz and hello-0.10.3.tar.gz.
Version numbers of computer programs do not comply with the mathematical rule concerning the below-decimal-point part. Mathematics treats the part below decimal point differently from the integral part. In mathematics, the following sort order holds.
0.1 = 0.10 = 0.100 < 0.11 < 0.2 < 0.3
On the other hand, the version numbering system treats the part below decimal point in the same manner as the integral part. In the version numbering system, the following sort order holds.
0.1.0 < 0.2.0 < 0.3.0 < 0.10.0 < 0.11.0 < 0.100.0
The "sort" command on bash fails to achieve this latter result. How can one achieve this latter result?
Many thanks in advance.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi There!
Apologies if this has been asked previously but I couldn't find the answer I was hoping for.
Basically, all I want to do is compare the OS X version against the version that I require in my script. So I'm retrieving the OS version using defaults read, but how can I compare this... (10 Replies)
Discussion started by: davewg
10 Replies
2. Shell Programming and Scripting
Hi,
I have a need to rename a list of files with a suffix .v1, .v2, v3 etc. and would like to keep a maximum of 6 versions.
example:
I have abc.sql in my current dir. and as part of a successful completion of another script I want to move abc.sql -> abc.sql.v1.
When I run the original... (3 Replies)
Discussion started by: try2shell
3 Replies
3. Shell Programming and Scripting
Hey guys, I have a file that contains the following:
366 K
364 Q
12 UB
7 INC. P
4 Law
2 LAMB
2 High
1 QEG
1 OF
1 LC
1 B
As you can see, it's already sorted by numerical order, how do I sort it again, breaking the ties by using the alphabetical order of the second column, but... (2 Replies)
Discussion started by: Andrew9191
2 Replies
4. Shell Programming and Scripting
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
5. Shell Programming and Scripting
Hello,
okey so my script is using 4 variables that are either empty or numbers in the following format:
NUMBER_1 NUMBER_2 NUMBER_3 NUMBER_4
So they're basically separated by a space and I need to echo the lowest number, so far I've been doing it like this:
echo "2 3 1 3" | tr " "... (6 Replies)
Discussion started by: TehOne
6 Replies
6. Shell Programming and Scripting
I just upgraded my laptop from Fedora 13 to 14, and normally, before I do the upgrade (Fresh install) I run an rpm command to make a list of all the packages I have installed, but without the version and architectures specified, so that I can just feed that list to yum after the upgrade to... (2 Replies)
Discussion started by: Tsuroerusu
2 Replies
7. UNIX for Advanced & Expert Users
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
8. Shell Programming and Scripting
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
9. Shell Programming and Scripting
Although i tried multiple option i couldn't find a way to get the rigt ouput.
Say i have the following data
cat file.txt
C request
C response
C request
C response
The output should look like (9 Replies)
Discussion started by: varu0612
9 Replies
10. Shell Programming and Scripting
I have files like this:
1
3
4
6
14
3
6
I want to extract the highest number. I have tried using
cat filename | sort
but then 9 would become higher than 14.
So how do I sort? (1 Reply)
Discussion started by: locoroco
1 Replies
SORT(1) General Commands Manual SORT(1)
NAME
sort - sort a file of ASCII lines
SYNOPSIS
sort [-bcdfimnru] [-tc] [-o name] [+pos1] [-pos2] file ...
OPTIONS
-b Skip leading blanks when making comparisons
-c Check to see if a file is sorted
-d Dictionary order: ignore punctuation
-f Fold upper case onto lower case
-i Ignore nonASCII characters
-m Merge presorted files
-n Numeric sort order
-o Next argument is output file
-r Reverse the sort order
-t Following character is field separator
-u Unique mode (delete duplicate lines)
EXAMPLES
sort -nr file # Sort keys numerically, reversed
sort +2 -4 file # Sort using fields 2 and 3 as key
sort +2 -t: -o out # Field separator is :
sort +.3 -.6 # Characters 3 through 5 form the key
DESCRIPTION
Sort sorts one or more files. If no files are specified, stdin is sorted. Output is written on standard output, unless -o is specified.
The options +pos1 -pos2 use only fields pos1 up to but not including pos2 as the sort key, where a field is a string of characters delim-
ited by spaces and tabs, unless a different field delimiter is specified with -t. Both pos1 and pos2 have the form m.n where m tells the
number of fields and n tells the number of characters. Either m or n may be omitted.
SEE ALSO
comm(1), grep(1), uniq(1).
SORT(1)