I have a file:
Fred
Fred
Fred
Jim
Fred
Jim
Jim
If sort is executed on the listed file, shouldn't the output be?:
Fred
Fred
Fred
Fred
Jim
Jim
Jim (3 Replies)
Using the last, uniq, sort and cut commands, determine how many times the different users have logged in.
I know how to use the last command and cut command...
i came up with last | cut -f1 -d" " | uniq
i dont know if this is right, can someone please help me... thanks (1 Reply)
Input File is :
-------------
25060008,0040,03,
25136437,0030,03,
25069457,0040,02,
80303438,0014,03,1st
80321837,0009,03,1st
80321977,0009,03,1st
80341345,0007,03,1st
84176527,0047,03,1st
84176527,0047,03,
20000735,0018,03,1st
25060008,0040,03,
I am using the following in the script... (5 Replies)
Hello All,
Today i have been asking lots of question, hope to become good in scripting soon with all the wonderful advices i get. The question is i want to sort data a get uniq string from it. The code i am using to generate the output is:-
check_sun() {
for i in $SUN_PLATFORM
do
$ECHO... (0 Replies)
Hello,
I have a large data file:
1234 8888 bbb
2745 8888 bbb
9489 8888 bbb
1234 8888 aaa
4838 8888 aaa
3977 8888 aaa
I need to remove duplicate lines (where the first column is the duplicate). I have been using:
sort file.txt | uniq -w4 > newfile.txt
However, it seems to keep the... (11 Replies)
I have a flatfile A.txt
2012/12/04 14:06:07 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 17:07:22 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 17:13:27 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 14:07:39 |rain|Boards 1|tampa|merced|merced11
How do i sort and get... (3 Replies)
Hi !
I am trying to remove doubbled entrys in a textfile only between delimiters.
Like that example but i dont know how to do that with sort or similar.
input:
{
aaa
aaa
}
{
aaa
aaa
}
output:
{
aaa
}
{ (8 Replies)
Hello all,
Need to pick your brains,
I have a 10Gb file where each row is a name, I am expecting about 50 names in total. So there are a lot of repetitions in clusters.
So I want to do a
sort -u file
Will it be considerably faster or slower to use a uniq before piping it to sort... (3 Replies)
Hi All,
Below the actual file which i like to sort and Uniq -u
/opt/oracle/work/Antony/Shell_Script> cat emp.1st
2233|a.k. shukula |g.m. |sales |12/12/52 |6000
1006|chanchal singhvi |director |sales |03/09/38 |6700... (8 Replies)
Discussion started by: Antony Ankrose
8 Replies
LEARN ABOUT NETBSD
uniq
UNIQ(1) BSD General Commands Manual UNIQ(1)NAME
uniq -- report or filter out repeated lines in a file
SYNOPSIS
uniq [-cdu] [-f fields] [-s chars] [input_file [output_file]]
DESCRIPTION
The uniq utility reads the standard input comparing adjacent lines, and writes a copy of each unique input line to the standard output. The
second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are
not adjacent, so it may be necessary to sort the files first.
The following options are available:
-c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.
-d Don't output lines that are not repeated in the input.
-f fields
Ignore the first fields in each input line when doing comparisons. A field is a string of non-blank characters separated from adja-
cent fields by blanks. Field numbers are one based, i.e. the first field is field one.
-s chars
Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the
first chars characters after the first fields fields will be ignored. Character numbers are one based, i.e. the first character is
character one.
-u Don't output lines that are repeated in the input.
If additional arguments are specified on the command line, the first such argument is used as the name of an input file, the second is used
as the name of an output file.
The uniq utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation.
SEE ALSO sort(1)STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD January 6, 2007 BSD