hey gurus,
my-build1-abc
my-build10-abc
my-build2-abc
my-build22-abc
my-build3-abc
basically i want to numerically sort the entire lines based on the build number. I dont zero pad the numbers because thats "how it is" 
sort -n won't work because it starts from the beginning.
so how would you do that in a one-liner. sed/awk maybe?
Cheers
sort -n -k1.9 inputfile
> cat gurpal.dat
my-build1-abc
my-build10-abc
my-build2-abc
my-build22-abc
my-build3-abc
> sort -n -k1.9 gurpal.dat
my-build1-abc
my-build2-abc
my-build3-abc
my-build10-abc
my-build22-abc
>
Jean-Pierre.
great! so does the 1.9 mean start at position 9? what if it is variable? do we need some regex?
thanks
ok so here is the real question. Essentially i'm listing labels from source control and format looks like
project_subproject_major.minor.build
example
myproject_abcdef_0.0.1
myproject_abcdef_0.0.2
myproject_abcdef_0.0.9
myproject_abcdef_0.0.10
myproject_abcdef_1.1.1
myproject_abcdef_1.1.10
myproject_abcdef_1.1.2
myproject_abcdef_1.0.1
myproject_abcdef_1.0.10
the major.minor.build numbers can be any magnitude. How does sort -k deal with things like this? So the output should be the same text but ordered numerically by major.minor.build.
That would be excellent if you could hint
I haven't found a simplest solution :
awk -F_ '{v=$NF; gsub(/\./," ",v) ; print v,$0}' inputfile |
sort -n -k1,1 -k2,2 -k3,3 |
cut -d' ' -f4-
Inputfile:
myproject_abcdef_0.0.1
myproject_abcdef_0.0.2
myproject_abcdef_0.0.9
myproject_abcdef_0.0.10
myproject_abcdef_1.1.1
myproject_abcdef_1.1.10
myproject_abcdef_1.1.2
myproject_abcdef_1.0.1
myproject_abcdef_1.0.10
Output:
myproject_abcdef_0.0.1
myproject_abcdef_0.0.2
myproject_abcdef_0.0.9
myproject_abcdef_0.0.10
myproject_abcdef_1.0.1
myproject_abcdef_1.0.10
myproject_abcdef_1.1.1
myproject_abcdef_1.1.2
myproject_abcdef_1.1.10
Jean-Pierre.
now THAT is clever!
Hello aigles,
Could you elaborate that the option of sort -k?
I mean in your two solutions, the first one used -k1.9 and the second one used the -k1,1, are there any difference between them? I can't sort the file using -k1,9 in the first example.
And In the manual of sort, the option K should take the comma not the dot.
From the sort man page:
-k keydef The keydef argument defines a restricted sort key.
The format of this definition is
field_start[type][,field_end[type]]
...
A field_start position specified by m.n is
interpreted to mean the nth character in the mth
field.
...
Thank you, I missed the part after the option.
strange i'm using sort 6.9 on mandriva 2008 and this doesnt appear in the man pages:
[server~]$ sort --version
sort (GNU coreutils) 6.9
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the terms of
the GNU General Public License <The GNU General Public License - GNU Project - Free Software Foundation (FSF)>.
There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and Paul Eggert.
ah i see it. it is mentioned a bit differently
POS is F[.C][OPTS], where F is the field number and C the character position in the field; both are
origin 1. If neither -t nor -b is in effect, characters in a field are counted from the beginning of
the preceding whitespace. OPTS is one or more single-letter ordering options, which override global
ordering options for that key. If no key is given, use the entire line as the key.