05-31-2011
How do you delete cells from a space delimited text file given row and column number?
How do you delete cells from a space delimited text file given row and column number? Letś say the row number is r and the column number is c. Thanks!
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I want to write a shell script which increments a particular column in a row from a text file and then adds another row below the current row with the incremented value .
For Eg .
if the input file has a row :
abc xyz lmn 89 lm nk o p
I would like the script to create something like... (9 Replies)
Discussion started by: aYankeeFan
9 Replies
2. UNIX for Dummies Questions & Answers
Hi
I am trying to search a firewall syslog space delimeted file for all of the different tcp and udp destination ports.
I know that grep will find lines that contain specific text. And I have tried using the the the cut command to cut out of the file certain colums. However the test I am... (6 Replies)
Discussion started by: andyblaylock
6 Replies
3. Shell Programming and Scripting
I have a large text-file with tab-delimited genetic data that looks like:
KSC112 KSC234 0 0 1 1 A G C T
I simply wan to delete the first column, but since the file has 600 000 columns, it is not possible with awk (seems to be limited at 32k columns).
Does anyone have an idea how to do this? (2 Replies)
Discussion started by: andmal
2 Replies
4. UNIX for Dummies Questions & Answers
I have this space delimited large text file with more than 1,000,000+ columns and about 100 rows. I want to delete all the cells that consist of just 2 (leave 2's that are not by themselves intact):
File before modification
aa bb cc 2 NA100 dd
aa b1 c2 2 NA102 de
File after modification... (1 Reply)
Discussion started by: evelibertine
1 Replies
5. UNIX for Dummies Questions & Answers
I have a text file with irregular spacing between values which makes it really difficult to manipulate. Is there an easy way to convert it into a space delimited text file so that all the spaces, double spaces, triple spaces, tabs between numbers are converted into spaces. The file looks like this:... (5 Replies)
Discussion started by: evelibertine
5 Replies
6. UNIX for Dummies Questions & Answers
I have a space delimited text file with two columns. I would like to add NA to the first column of the text file.
Input:
19625 10.4791768259
19700 10.8146489183
19701 10.9084026759
19702 10.9861346978
19703 10.9304364984
Output:
NA19625 10.4791768259
NA19700 10.8146489183... (1 Reply)
Discussion started by: evelibertine
1 Replies
7. UNIX for Dummies Questions & Answers
I have a space delimited text file. I want to extract rows where the third column has 0 as a value and write those rows into a new space delimited text file. How do I go about doing that? Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies
8. Shell Programming and Scripting
I am fairly new to programming and trying to resolve this problem. I have the file like this.
CHROM POS REF ALT 10_sample.bam 11_sample.bam 12_sample.bam 13_sample.bam 14_sample.bam 15_sample.bam 16_sample.bam
tg93 77 T C T T T T T
tg93 79 ... (4 Replies)
Discussion started by: empyrean
4 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I have a space delimited text file but I only want to change the first space to a tab and keep the rest of the spaces intact. How do I go about doing that? Thanks! (3 Replies)
Discussion started by: evelibertine
3 Replies
10. Shell Programming and Scripting
Hi,
Can anyone please tell me about how we can delete an entire column from a tab delimited file?
Mu input_file.txt looks like this:
And I want the output as:
I used the below code
nawk -v d="1" 'BEGIN{FS=OFS="\t"}{$d=""}{print}' input_file.txtBut in the output, the first column is... (5 Replies)
Discussion started by: sampoorna
5 Replies
LEARN ABOUT PHP
db2_fetch_both
DB2_FETCH_BOTH(3) 1 DB2_FETCH_BOTH(3)
db2_fetch_both - Returns an array, indexed by both column name and position, representing a row in a result set
SYNOPSIS
array db2_fetch_both (resource $stmt, [int $row_number = -1])
DESCRIPTION
Returns an array, indexed by both column name and position, representing a row in a result set. Note that the row returned by
db2_fetch_both(3) requires more memory than the single-indexed arrays returned by db2_fetch_assoc(3) or db2_fetch_array(3).
PARAMETERS
o $stmt
- A valid stmt resource containing a result set.
o $row_number
- Requests a specific 1-indexed row from the result set. Passing this parameter results in a PHP warning if the result set uses a
forward-only cursor.
RETURN VALUES
Returns an associative array with column values indexed by both the column name and 0-indexed column number. The array represents the next
or requested row in the result set. Returns FALSE if there are no rows left in the result set, or if the row requested by $row_number does
not exist in the result set.
EXAMPLES
Example #1
Iterating through a forward-only cursor
If you call db2_fetch_both(3) without a specific row number, it automatically retrieves the next row in the result set. The follow-
ing example accesses columns in the returned array by both column name and by numeric index.
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$stmt = db2_prepare($conn, $sql);
$result = db2_execute($stmt);
while ($row = db2_fetch_both($stmt)) {
printf ("%-5d %-16s %-32s %10s
",
$row['ID'], $row[0], $row['BREED'], $row[3]);
}
?>
The above example will output:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
Example #2
Retrieving specific rows with db2_fetch_both(3) from a scrollable cursor
If your result set uses a scrollable cursor, you can call db2_fetch_both(3) with a specific row number. The following example
retrieves every other row in the result set, starting with the second row.
<?php
$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$result = db2_exec($stmt, $sql, array('cursor' => DB2_SCROLLABLE));
$i=2;
while ($row = db2_fetch_both($result, $i)) {
printf ("%-5d %-16s %-32s %10s
",
$row[0], $row['NAME'], $row[2], $row['WEIGHT']);
$i = $i + 2;
}
?>
The above example will output:
0 Pook cat 3.20
5 Rickety Ride goat 9.70
2 Smarty horse 350.00
SEE ALSO
db2_fetch_array(3), db2_fetch_assoc(3), db2_fetch_object(3), db2_fetch_row(3), db2_result(3).
PHP Documentation Group DB2_FETCH_BOTH(3)