The sort utility key field specifiers -k 1,3 and -k 12,4 are specifying ranges of fields (not output print columns). To sort on the 1st three characters (still not print columns) on the line as the primary sort key and the 12th through the 15th characters of the 1st field as the secondary sort key the way to specify it would be:
which would save:
in output.txt for the given sample input. Note that when all given sort keys give two or more lines the same sort order (as in the last two lines here), the tie is broken by using the entire line as a final increasing order alphanumeric sort key.
PS Note also that sort works on text, not binary data. It sorts characters; not bytes. If the file you're sorting is ASCII it might not matter; but if your text contains UTF-8 multibyte characters; it makes a big difference.
Last edited by Don Cragun; 11-05-2013 at 06:33 PM..
Reason: Note byte != character.
This User Gave Thanks to Don Cragun For This Post:
M 47 HIS:LOT 32 DUTY 2 MIKE, FINISHED
MIKE ACTIVE STATUS
23TASK YES GOOD
100TASK NO GOOD
========================================
M 47 HIS:LOT 1 DUTY 1 MIKE, FINISHED
MIKE ACTIVE STATUS
23TASK YES GOOD
... (7 Replies)
I'm looking for a sort command that will sort by zip code first then by last name. (zip code is the last field, last name is first field)
data file looks like this.
Hope Bob 1234 Main ST. Colorado Springs, CO 80920
I was thinking along the lines of:
sort -k9n address.data //for the... (2 Replies)
Hi all.
Is there a way that I can use the sort command too sort the following field by earliest time (12:00AM) to latest time (11:59PM)?
07:12PM
07:53PM
07:54PM
08:07PM
10:15AM
10:21AM
TIA!!!!!! (1 Reply)
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)
I am going through the Unix Made Easy second edition book by John Muster. So far it's been very informative and I can tell it may be a bit out of date.
In one of the exercises it talks about the "sort" command and using it to sort column's of data etc. The "sort" command has changed a bit and... (1 Reply)
Hi Guys,
I have a file to be sorted and uniq with the following format.
S00001002|01|20021231
S00001002|01|20011031
S00001006|01|20120430
S00001006|01|20111231
S00001006|01|20111031
S00001006|01|20110831
S00001006|01|20110731
S00001006|01|20101231
S00001006|01|20091231... (5 Replies)
I have a file like this:
/vol/eng_app_0103z
/vol/eng_app_0103z
/vol/eng_app_0120z
/vol/eng_app_0126z
/vol/eng_app_0144z
/vol/eng_app_0150z
/vol/eng_app_0154z
/vol/eng_app_01551z
/vol/eng_app_01552z
/vol/eng_app_0155z
/vol/eng_app_0164z
/vol/eng_app_0199zWhen I use the sort command... (3 Replies)
Have a text file containing 4 columns, the 4th column is sorted numerically in descending order. The 2nd column is alpha text. Been able to get the 4th column to sort in descending order. The 2nd column sorts correctly but it's also in reverse. Would like to be able to keep the 4th column sort... (8 Replies)
Discussion started by: jimmyf
8 Replies
LEARN ABOUT LINUX
debconf-set-selections
DEBCONF-SET-SELECTIONS(1) Debconf DEBCONF-SET-SELECTIONS(1)NAME
debconf-set-selections - insert new default values into the debconf database
SYNOPSIS
debconf-set-selections file
debconf-get-selections | ssh newhost debconf-set-selections
DESCRIPTION
debconf-set-selections can be used to pre-seed the debconf database with answers, or to change answers in the database. Each question will
be marked as seen to prevent debconf from asking the question interactively.
Reads from a file if a filename is given, otherwise from stdin.
WARNING
Only use this command to seed debconf values for packages that will be or are installed. Otherwise you can end up with values in the
database for uninstalled packages that will not go away, or with worse problems involving shared values. It is recommended that this only
be used to seed the database if the originating machine has an identical install.
DATA FORMAT
The data is a series of lines. Lines beginning with a # character are comments. Blank lines are ignored. All other lines set the value of
one question, and should contain four values, each separated by one character of whitespace. The first value is the name of the package
that owns the question. The second is the name of the question, the third value is the type of this question, and the fourth value (through
the end of the line) is the value to use for the answer of the question.
Alternatively, the third value can be "seen"; then the preseed line only controls whether the question is marked as seen in debconf's
database. Note that preseeding a question's value defaults to marking that question as seen, so to override the default value without
marking a question seen, you need two lines.
Lines can be continued to the next line by ending them with a "" character.
EXAMPLES
# Force debconf priority to critical.
debconf debconf/priority select critical
# Override default frontend to readline, but allow user to select.
debconf debconf/frontend select readline
debconf debconf/frontend seen false
OPTIONS --verbose, -v
verbose output
--checkonly, -c
only check the input file format, do not save changes to database
SEE ALSO debconf-get-selections(1) (available in the debconf-utils package)
AUTHOR
Petter Reinholdtsen <pere@hungry.com>
2011-06-22 DEBCONF-SET-SELECTIONS(1)