Hi, i was looking for unix command(s) for :
find the first occurrence of a given pattern with in a file and print the remaining part.
below is an example of what i am looking for:
lets say, a file named myfile.txt
now, the command i am looking for will do the following (4 Replies)
Hi,
I have two files. 1st file has 1 column (huge file containing ~19200000 lines) and 2nd file has 2 columns (small file containing ~6000 lines).
#################################
huge_file.txt
a
a
ab
b
##################################
small_file.txt
a 1.5
b 2.5
ab ... (4 Replies)
I have a file with very specific column spacing formatting,
I wish to do the following:
awk '{print $1, $2, $3, $4, $5, $6, $19-$7, $20-$8, $21-$9, $10, $11, $12}' merge.pdb > vector.pdb
but the format gets ruined.
I have tried with print -f but to no avail.... (7 Replies)
Hi All,
I have to match each row in file 1 with 1st row in file 2 and print the corresponding column from file2. I am trying to use an awk script to do this. For example
cat File1
X1
X3
X4
cat File2
ID X1 X2 X3 X4
A 1 6 2 1
B 2 7 3 3
C 3 8 4 1
D 4 9 1 1 (3 Replies)
Hello,
I have two files
File 1 with 10 columns
rsid position ........
xx 1:10000
File 2
position
1:10000
2:2000
....
I need to extract the IDs given in file 2(column1) from file 1 (column2) and print all columns from file1. I am trying this command (1 Reply)
Hello, I have two tab files with headers
File1: with 4 columns
header1 header2 header3 header4
44 a bb 1
57 c ab 4
64 d d 5
File2: with 26 columns
header1.. header5 header6 header7 ... header 22...header26
id1 44 a bb
id2 57 ... (6 Replies)
I have two text files. File 1 has 150 ids but all the ids exists in duplicates so it has 300 ids in total. File 2 has 1500 ids but all exists in duplicates so file 2 has 300 ids in total. i want to match the first occurance of every id in file 1 with first occurance of thet id in file 2 and 2nd... (2 Replies)
In the awk below I am trying to output those lines that Match between file1 and file2, those Missing in file1, and those missing in file2. Using each $1,$2,$4,$5 value as a key to match on, that is if those 4 fields are found in both files the match, but if those 4 fields are not found then missing... (0 Replies)
Discussion started by: cmccabe
0 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)