This would explain the output of "sort -n -u", but not of "sort -u -n". Unless it makes no difference in what order you put the options. Again, nothing that "man" seems to highlight in our case:
Can someone please tell me how to sort a file, based on a particular position within the file?
I have a line sequential file that is 152 bytes per record, in which i need to sort the file based on the numeric data in positions 142-152.
I have done the "man sort" command and see the -k option... (1 Reply)
Hi,
I am going to sort a huge flat file using sort command, this file is about 36 million lines, 179 fields delimitered by Ctrl B (002). eg.
1^B198709.....
17^B200301....
3^B196511....
.....
I want this file being sorted by the first field, the result is like :
1^B198709........ (2 Replies)
Hi i have a file containing ip addresses and want to sort those IP addresses in the ascending order.
file (match.txt) contents are:
192.168.0.100
192.168.0.16
192.168.0.10
192.168.0.23
192.168.0.2
192.168.0.3
192.168.0.1
192.168.0.222
i tried:
sort -n match.txt
output is :... (3 Replies)
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 have file ipaddress.txt
192.168.1.25
127.3.9.12
192.168.12.1
127.21.2.3
127.92.80.6
192.168.4.5
I want to sort as
127.3.9.12
127.21.2.3
127.92.80.6
192.168.1.25
192.168.12.1
192.168.4.5
So what sort command do I have to use. (1 Reply)
I have a file with the following content:-
181268525,0640613864,B,113,22-dec-2011 14:12:08,
181268525,0640613864,C,113,25-dec-2011 14:18:50,
181268525,0640613864,L,113,26-dec-2011 14:07:46,
181268525,0640613864,X,113,01-jan-2012 16:57:45,
181268525,0640613864,X,113,04-jan-2012 14:13:27,... (3 Replies)
Hi All,
I have used sort -k1 -n data.txt > output.txt command on a large text data file with over 1,000,000 rows. The command managed to sort the data but the code did not read data according to sequence of occurrence. Given below are the first five lines of the data I need to sort;
1 1... (2 Replies)
Discussion started by: Theo Score
2 Replies
LEARN ABOUT XFREE86
uniq
UNIQ(1) User Commands UNIQ(1)NAME
uniq - report or omit repeated lines
SYNOPSIS
uniq [OPTION]... [INPUT [OUTPUT]]
DESCRIPTION
Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
Mandatory arguments to long options are mandatory for short options too.
-c, --count
prefix lines by the number of occurrences
-d, --repeated
only print duplicate lines, one for each group
-D print all duplicate lines
--all-repeated[=METHOD]
like -D, but allow separating groups with an empty line; METHOD={none(default),prepend,separate}
-f, --skip-fields=N
avoid comparing the first N fields
--group[=METHOD]
show all items, separating groups with an empty line; METHOD={separate(default),prepend,append,both}
-i, --ignore-case
ignore differences in case when comparing
-s, --skip-chars=N
avoid comparing the first N characters
-u, --unique
only print unique lines
-z, --zero-terminated
line delimiter is NUL, not newline
-w, --check-chars=N
compare no more than N characters in lines
--help display this help and exit
--version
output version information and exit
A field is a run of blanks (usually spaces and/or TABs), then non-blank characters. Fields are skipped before chars.
Note: 'uniq' does not detect repeated lines unless they are adjacent. You may want to sort the input first, or use 'sort -u' without
'uniq'. Also, comparisons honor the rules specified by 'LC_COLLATE'.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report uniq translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO comm(1), join(1), sort(1)
Full documentation at: <http://www.gnu.org/software/coreutils/uniq>
or available locally via: info '(coreutils) uniq invocation'
GNU coreutils 8.28 January 2018 UNIQ(1)