08-28-2017
Please become accustomed to provide decent context info of your problem.
It is always helpful to support a request with system info like OS and shell, related environment (variables, options), preferred tools, adequate (representative) sample input and desired output data and the logics connecting the two, and, if existent, system (error) messages verbatim, to avoid ambiguities and keep people from guessing.
Please be aware that without prior sort, uniq can't reliably find unique entries.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a challenging task,in which i have to find the duplicate files by its name and size,then i need to take anyone of the file.Then i need to open the file and find for more than one pattern and count of that pattern.
Note:These are the samples of two files,but i can have more... (2 Replies)
Discussion started by: jerome Sukumar
2 Replies
2. UNIX for Dummies Questions & Answers
Ok, another fun hiccup in my UNIX learning curve. I am trying to count the number of occurrences of an IP address across multiple files named example.hits. I can extract the number of occurrences from the files individually but when you use grep -c with multiple files you get the output similar to... (5 Replies)
Discussion started by: MrAd
5 Replies
3. Shell Programming and Scripting
Seems like can use awk and perl command. But I don't have the idea to write the command line. Thanks for all of your advise.
For example, if I have the file whose content are:
Sample 1. ATAGCAGAGGGAGTGAAGAGGTGGTGGGAGGGAGCT
Sample 2. ACTTTTATTTGAATGTAATATTTGGGACAATTATTC
Sample 3.... (1 Reply)
Discussion started by: patrick chia
1 Replies
4. Shell Programming and Scripting
how to count the total number of lines of all the files under a directory using perl script..
I mean if I have 10 files under a directory then I want to count the total number of lines of all the 10 files contain. Please help me in writing a perl script on this. (5 Replies)
Discussion started by: adityam
5 Replies
5. Shell Programming and Scripting
Please advice how can we search for a string say (abc) in multiple files and to get total occurrence of that searched string. (Need number of records that exits in period of time).
File look like this (read as filename.yyyymmdd)
a.20100101
b.20100108
c.20100115
d.20100122
e.20100129... (2 Replies)
Discussion started by: zooby
2 Replies
6. Shell Programming and Scripting
i want to find the no:of occurrences of a word in a file
cat 1.txt
unix script unix script
unix script unix script unix script unix script
unix script unix script unix
unix
script
unix script unix script now i want to find , how many times 'unix' was occurred
please help me
thanks... (6 Replies)
Discussion started by: mahesh1987
6 Replies
7. Shell Programming and Scripting
Hi Guys,
I need to write a script to compare the count of two csv files each having 5 columns.
Everyday a csv file is recived.
Now we need to compare the count of todays csv file with yesterday's csv file and if the total count of records is same in todays csv file and yesterday csv file out... (3 Replies)
Discussion started by: Vivekit82
3 Replies
8. Shell Programming and Scripting
Hi,
Very good wishes to all!
Please help to provide the shell script for generating the record counts in filed wise from the .csv file
My question:
Source file:
Field1 Field2 Field3
abc 12f sLm
1234 hjd 12d
Hyd 34
Chn
My target file should generate the .csv file with the... (14 Replies)
Discussion started by: Kirands
14 Replies
9. Shell Programming and Scripting
Hi,
I have a .dat file with contents like the below:
Input file
============SEQ NO-1: COLUMN1==========
9835619
7152815
============SEQ NO-2: COLUMN2 ==========
7615348
7015548
9373086
============SEQ NO-3: COLUMN3===========
9373086
Expected Output: (I just... (1 Reply)
Discussion started by: MS06
1 Replies
10. UNIX for Beginners Questions & Answers
Hello All,
just wanted to export multiple tables from oracle sql using unix shell script to csv file and the below code is exporting only the first table.
Can you please suggest why? or any better idea?
export FILE="/abc/autom/file/geo_JOB.csv"
Export= `sqlplus -s dev01/password@dEV3... (16 Replies)
Discussion started by: Hope
16 Replies
uniq(1) User Commands uniq(1)
NAME
uniq - report or filter out repeated lines in a file
SYNOPSIS
uniq [-c | -d | -u] [-f fields] [-s char] [ input_file [output_file]]
uniq [-c | -d | -u] [-n] [ + m] [ input_file [output_file]]
DESCRIPTION
The uniq utility will read an input file comparing adjacent lines, and write one copy of each input line on the output. The second and suc-
ceeding copies of repeated adjacent input lines will not be written.
Repeated lines in the input will not be detected if they are not adjacent.
OPTIONS
The following options are supported:
-c Precedes each output line with a count of the number of times the line occurred in the input.
-d Suppresses the writing of lines that are not repeated in the input.
-f fields Ignores the first fields fields on each input line when doing comparisons, where fields is a positive decimal integer. A
field is the maximal string matched by the basic regular expression:
[[:blank:]]*[^[:blank:]]*
If fields specifies more fields than appear on an input line, a null string will be used for comparison.
-s chars Ignores the first chars characters when doing comparisons, where chars is a positive decimal integer. If specified in con-
junction with the -f option, the first chars characters after the first fields fields will be ignored. If chars specifies
more characters than remain on an input line, a null string will be used for comparison.
-u Suppresses the writing of lines that are repeated in the input.
-n Equivalent to -f fields with fields set to n.
+m Equivalent to -s chars with chars set to m.
OPERANDS
The following operands are supported:
input_file A path name of the input file. If input_file is not specified, or if the input_file is -, the standard input will be used.
output_file A path name of the output file. If output_file is not specified, the standard output will be used. The results are unspeci-
fied if the file named by output_file is the file named by input_file.
EXAMPLES
Example 1: Using the uniq command
The following example lists the contents of the uniq.test file and outputs a copy of the repeated lines.
example% cat uniq.test
This is a test.
This is a test.
TEST.
Computer.
TEST.
TEST.
Software.
example% uniq -d uniq.test
This is a test.
TEST.
example%
The next example outputs just those lines that are not repeated in the uniq.test file.
example% uniq -u uniq.test
TEST.
Computer.
Software.
example%
The last example outputs a report with each line preceded by a count of the number of times each line occurred in the file:
example% uniq -c uniq.test
2 This is a test.
1 TEST.
1 Computer.
2 TEST.
1 Software.
example%
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of uniq: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWesu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
comm(1), pack(1), pcat(1), sort(1), uncompress(1), attributes(5), environ(5), standards(5)
SunOS 5.10 20 Dec 1996 uniq(1)