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 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)
Hi All,
I am searching for a script which will produce an output file with the uniq first field with the second field having highest value among all the duplicates..
The output file will produce only the uniqs which are duplicate 3 times..
Input file
X 9
B 5
A 1
Z 9
T 4
C 9
A 4... (13 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 PHP
pg_fetch_array
PG_FETCH_ARRAY(3)PG_FETCH_ARRAY(3)pg_fetch_array - Fetch a row as an arraySYNOPSIS
array pg_fetch_array (resource $result, [int $row], [int $result_type = PGSQL_BOTH])
DESCRIPTION pg_fetch_array(3) returns an array that corresponds to the fetched row (record).
pg_fetch_array(3) is an extended version of pg_fetch_row(3). In addition to storing the data in the numeric indices (field number) to the
result array, it can also store the data using associative indices (field name). It stores both indicies by default.
Note
This function sets NULL fields to the PHP NULL value.
pg_fetch_array(3) is NOT significantly slower than using pg_fetch_row(3), and is significantly easier to use.
PARAMETERS
o $result
- PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others).
o $row
- Row number in result to fetch. Rows are numbered from 0 upwards. If omitted or NULL, the next row is fetched.
o $result_type
- An optional parameter that controls how the returned array is indexed. $result_type is a constant and can take the following
values: PGSQL_ASSOC, PGSQL_NUM and PGSQL_BOTH. Using PGSQL_NUM, pg_fetch_array(3) will return an array with numerical indices,
using PGSQL_ASSOC it will return only associative indices while PGSQL_BOTH, the default, will return both numerical and associa-
tive indices.
RETURN VALUES
An array indexed numerically (beginning with 0) or associatively (indexed by field name), or both. Each value in the array is represented
as a string. Database NULL values are returned as NULL.
FALSE is returned if $row exceeds the number of rows in the set, there are no more rows, or on any other error.
EXAMPLES
Example #1
pg_fetch_array(3) example
<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occurred.
";
exit;
}
$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
echo "An error occurred.
";
exit;
}
$arr = pg_fetch_array($result, 0, PGSQL_NUM);
echo $arr[0] . " <- Row 1 Author
";
echo $arr[1] . " <- Row 1 E-mail
";
// As of PHP 4.1.0, the row parameter is optional; NULL can be passed instead,
// to pass a result_type. Successive calls to pg_fetch_array will return the
// next row.
$arr = pg_fetch_array($result, NULL, PGSQL_ASSOC);
echo $arr["author"] . " <- Row 2 Author
";
echo $arr["email"] . " <- Row 2 E-mail
";
$arr = pg_fetch_array($result);
echo $arr["author"] . " <- Row 3 Author
";
echo $arr[1] . " <- Row 3 E-mail
";
?>
SEE ALSO pg_fetch_row(3), pg_fetch_object(3), pg_fetch_result(3).
PHP Documentation Group PG_FETCH_ARRAY(3)