Would print only first line of the duplicates, and ignore the others.
This approach builds an array though, so it's gonna increase the memory use as it goes on; it can be written much better if we can guarantee that the duplicate lines are clustered together. In that case, something like this:
I am doing KSH script to remove duplicate lines in a file. Let say the file has format below.
FileA
1253-6856
3101-4011
1827-1356
1822-1157
1822-1157
1000-1410
1000-1410
1822-1231
1822-1231
3101-4011
1822-1157
1822-1231
and I want to simply it with no duplicate line as file... (5 Replies)
I have following file content (3 fields each line):
23 888 10.0.0.1
dfh 787 10.0.0.2
dssf dgfas 10.0.0.3
dsgas dg 10.0.0.4
df dasa 10.0.0.5
df dag 10.0.0.5
dfd dfdas 10.0.0.5
dfd dfd 10.0.0.6
daf nfd 10.0.0.6
...
as can be seen, that the third field is ip address and sorted. but... (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 came to know that using awk '!x++' removes the duplicate lines. Can anyone please explain the above syntax. I want to understand how the above awk syntax removes the duplicates.
Thanks in advance,
sudvishw :confused: (7 Replies)
Hello Folks,
Can some one help me with the removal of duplicate lines from a log file and send it to another log file. It's bit complicated as two lines are same but only difference is the timestamp, but some lines are uniq. Line has been seperated by colon's.
Log file:... (5 Replies)
hi to all
Does anyone know if there's a way to remove duplicate lines which we consider the same only if they have the first and the second column the same?
For example I have :
us2333 bbb 5
us2333 bbb 3
us2333 bbb 2
and I want to get
us2333 bbb 10
The thing is I cannot... (2 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)
Within my text file i have several thousand lines of text with some lines containing duplicate strings/words. I would like to entirely remove those lines which contain the duplicate strings.
Eg;
One and a Two
Unix.com is the Best
This as a Line Line
Example duplicate sentence with the word... (22 Replies)
Hi All,
I am storing the result in the variable result_text using the below code.
result_text=$(printf "$result_text\t\n$name") The result_text is having the below text. Which is having duplicate lines.
file and time for the interval 03:30 - 03:45
file and time for the interval 03:30 - 03:45 ... (4 Replies)
Discussion started by: nalu
4 Replies
LEARN ABOUT SUNOS
fmt
fmt(1) User Commands fmt(1)NAME
fmt - simple text formatters
SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile...]
DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w
width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the
standard input.
Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for
compatibility with
nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which
must begin with "From".
Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used).
fmt can also be used as an in-line text filter for vi(1). The vi command:
!}fmt
reformats the text between the cursor location and the end of the paragraph.
OPTIONS -c Crown margin mode. Preserve the indentation of the first two lines within a paragraph, and align the left margin of
each subsequent line with that of the second line. This is useful for tagged paragraphs.
-s Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such
formatted text, from being unduly combined.
-w width | -width Fill output lines to up to width columns.
OPERANDS
inputfile Input file.
ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO nroff(1), vi(1), attributes(5), environ(5)NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases.
SunOS 5.10 9 May 1997 fmt(1)