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,
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)
Hi All,
I have a text file with the format shown below. Some of the records are duplicated with the only exception being date (Field 15). I want to compare all duplicate records using subscriber number (field 7) and keep only those records with greater date.
... (1 Reply)
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 again,
I have files with the following contents
datetime,ip1,port1,ip2,port2,number
How would I find out how many times ip1 field shows up a particular file? Then how would I find out how many time ip1 and port 2 shows up?
Please mind the file may contain 100k lines. (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 PHP
rsort
RSORT(3) 1 RSORT(3)rsort - Sort an array in reverse orderSYNOPSIS
bool rsort (array &$array, [int $sort_flags = SORT_REGULAR])
DESCRIPTION
This function sorts an array in reverse order (highest to lowest).
PARAMETERS
o $array
- The input array.
o $sort_flags
- You may modify the behavior of the sort using the optional parameter $sort_flags, for details see sort(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
rsort(3) example
<?php
$fruits = array("lemon", "orange", "banana", "apple");
rsort($fruits);
foreach ($fruits as $key => $val) {
echo "$key = $val
";
}
?>
The above example will output:
0 = orange
1 = lemon
2 = banana
3 = apple
The fruits have been sorted in reverse alphabetical order.
NOTES
Note
This function assigns new keys to the elements in $array. It will remove any existing keys that may have been assigned, rather than
just reordering the keys.
SEE ALSO arsort(3), krsort(3), The comparison of array sorting functions.
PHP Documentation Group RSORT(3)