Hi,
I have a file with duplicate lines in it. I want to keep only the duplicate lines and delete the non duplicates. Can some one please help me?
Regards
Narayana Gupta (3 Replies)
I have a log file "logreport" that contains several lines as seen below:
04:20:00 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping
06:38:08 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but responded to ping
07:11:05 /usr/lib/snmp/snmpdx: Agent snmpd appeared dead but... (18 Replies)
Hi,
I need to concatenate three files in to one destination file.In this if some duplicate data occurs it should be deleted.
eg:
file1:
-----
data1 value1
data2 value2
data3 value3
file2:
-----
data1 value1
data4 value4
data5 value5
file3:
-----
data1 value1
data4 value4 (3 Replies)
I have setof files with data and with same fields multiple times in each of the files.
for example:
file 1
name = mary kate
last name = kate
address = 123
street = abc
name = mary mark
last name = mark
address = 456
street = bcd
file 2
name = mary kate
last name = kate... (2 Replies)
Hi All,
I am trying to remove the duplicate entries in a file and print them just once. For example, if my input file has:
00:44,37,67,56,15,12
00:44,34,67,56,15,12
00:44,58,67,56,15,12
00:44,35,67,56,15,12
00:59,37,67,56,15,12
00:59,34,67,56,15,12
00:59,35,67,56,15,12... (7 Replies)
Hi,
I have a file with a size of 10 mb and I need to redirect some specific lines to a new files. For eg.
Executed Restore for 11227.EDCS.551.01.201110 from /tmp/bk/restore/CR81500/content/S24U15VA2.2010-10-29.16:49.EDT/ArchiveFile_11227.EDCS.551.01.201110.zip
Operation output:
<U+FEFF>Oct... (4 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
hello all
in my bash script I have a file and I only want to keep the lines that appear twice in the file.Is there a way to do this?
thanks in advance! (4 Replies)
Hi,
I have a csv file which contains some millions of lines in it.
The first line(Header) repeats at every 50000th line. I want to remove all the duplicate headers from the second occurance(should not remove the first line).
I don't want to use any pattern from the Header as I have some... (7 Replies)
Discussion started by: sudhakar T
7 Replies
LEARN ABOUT SUSE
uniq
UNIQ(1) User Commands UNIQ(1)NAME
uniq - report or omit repeated lines
SYNOPSIS
uniq [OPTION]... [INPUT [OUTPUT]]
DESCRIPTION
Discard all but one of successive identical lines from INPUT (or standard input), writing to OUTPUT (or standard output).
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
-D, --all-repeated[=delimit-method]
print all duplicate lines delimit-method={none(default),prepend,separate} Delimiting is done with blank lines.
-f, --skip-fields=N
avoid comparing the first N fields
-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
end lines with 0 byte, 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'.
AUTHOR
Written by Richard M. Stallman and David MacKenzie.
REPORTING BUGS
Report uniq bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2009 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
The full documentation for uniq is maintained as a Texinfo manual. If the info and uniq programs are properly installed at your site, the
command
info coreutils 'uniq invocation'
should give you access to the complete manual.
GNU coreutils 7.1 July 2010 UNIQ(1)