Hello!
Is it anyone who might know how to extract the n last lines from a file, typically the 1000 last? Until know I have used sed -n np filename, but it takes each line separately, and is hence very time consuming.
Thank you in advance! (3 Replies)
Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2
file 1 sample
SNDK 80004C101 AT
XLNX 983919101 BB
NETL 64118B100 BS
AMD 007903107 CC
KLAC 482480100 DC
TER 880770102 KATS
ATHR 04743P108 KATS... (7 Replies)
Can anyone please help with this? I have 2 files as given below.
If 2nd column of file1 has pattern foo1@a, find the matching 1st column in file2 & replace 2nd column of file1 with file2's value.
file1
abc_1 foo1@a ....
abc_1 soo2@a ...
def_2 soo2@a ....
def_2 foo1@a ........ (7 Replies)
Hi Bigshots,
I have a pattern file with two columns. I have another data file. If column 1 in the pattern file appears as the 4th column in the data file, I need to replace it (4th column of data file) with column 2 of the pattern file. If the pattern is found in any other column, it should not... (6 Replies)
Hi,
I want to replace the value in more than one column.
For one column ,following command is working -
sed 's/./$value_to_replace/$column number' file_name
e.g. suppose this is input 1111000000
command - sed 's/./M/5'
output= 1111M000000
For two column also command is like -
cat... (22 Replies)
hi i have sample data
a,b,c,d,e,g h http://mysite.xyx
z,b,d,f,e,s t http://123124#
a,b,c,i,m,nothing
d,i,j,e,w,nothing
output expected is
a,b,c,d,e,http://mysite.xyx
z,b,d,f,e,http://123124#
a,b,c,i,m,nothing
d,i,j,e,w,nothing
i can get only links using grep -o 'http.*'
i... (8 Replies)
Hi Experts,
Please bear with me, i need help
I am learning AWk and stuck up in one issue.
First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique.
Second point : For... (12 Replies)
I have a csv which has lot of columns . I was looking for an awk script which would extract a column twice. for the first occurance the header and data needs to be intact but for the second occurance i want to replace the header name since it a duplicate and extract year value which is in ddmmyy... (10 Replies)
file1:
Name,Threshold,Curr Samples,Curr Error%,Curr ART
GETHome,100,21601,0.00%,47
GETregistry,100,21592,0.00%,13
GEThomeLayout,100,30466,0.00%,17
file2:
Name,Threshold,Curr Samples,Curr Error%,Curr ART
GETHome,100,21601,0.00%,33
GETregistry,100,21592,0.00%,22... (6 Replies)
Discussion started by: Raghuram717
6 Replies
LEARN ABOUT PHP
maxdb_stmt_execute
MAXDB_STMT_EXECUTE(3) 1 MAXDB_STMT_EXECUTE(3)maxdb_stmt_execute - Executes a prepared Query
Procedural style
SYNOPSIS
bool maxdb_stmt_execute (resource $stmt)
DESCRIPTION
Object oriented style
bool maxdb_stmt::execute (void )
The maxdb_stmt_execute(3) function executes a query that has been previously prepared using the maxdb_prepare(3) function represented by
the $stmt resource. When executed any parameter markers which exist will automatically be replaced with the appropiate data.
If the statement is UPDATE, DELETE, or INSERT, the total number of affected rows can be determined by using the
maxdb_stmt_affected_rows(3) function. Likewise, if the query yields a result set the maxdb_fetch(3) function is used.
Note
When using maxdb_stmt_execute(3), the maxdb_fetch(3) function must be used to fetch the data prior to preforming any additional
queries.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Object oriented style
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
$maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city");
/* Prepare an insert statement */
$query = "INSERT INTO temp.mycity (zip, name, state) VALUES (?,?,?)";
$stmt = $maxdb->prepare($query);
$stmt->bind_param("sss", $val1, $val2, $val3);
$val1 = '11111';
$val2 = 'Georgetown';
$val3 = 'NY';
/* Execute the statement */
$stmt->execute();
$val1 = '22222';
$val2 = 'Hubbatown';
$val3 = 'CA';
/* Execute the statement */
$stmt->execute();
/* close statement */
$stmt->close();
/* retrieve all rows from myCity */
$query = "SELECT zip, name, state FROM temp.mycity";
if ($result = $maxdb->query($query)) {
while ($row = $result->fetch_row()) {
printf("%s (%s,%s)
", $row[0], $row[1], $row[2]);
}
/* free result set */
$result->close();
}
/* remove table */
$maxdb->query("DROP TABLE temp.mycity");
/* close connection */
$maxdb->close();
?>
Example #2
Procedural style
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s
", maxdb_connect_error());
exit();
}
maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city");
/* Prepare an insert statement */
$query = "INSERT INTO temp.mycity (zip, name, state) VALUES (?,?,?)";
$stmt = maxdb_prepare($link, $query);
maxdb_stmt_bind_param($stmt, "sss", $val1, $val2, $val3);
$val1 = '11111';
$val2 = 'Georgetown';
$val3 = 'NY';
/* Execute the statement */
maxdb_stmt_execute($stmt);
$val1 = '22222';
$val2 = 'Hubbatown';
$val3 = 'CA';
/* Execute the statement */
maxdb_stmt_execute($stmt);
/* close statement */
maxdb_stmt_close($stmt);
/* retrieve all rows from myCity */
$query = "SELECT zip, name, state FROM temp.mycity";
if ($result = maxdb_query($link, $query)) {
while ($row = maxdb_fetch_row($result)) {
printf("%s (%s,%s)
", $row[0], $row[1], $row[2]);
}
/* free result set */
maxdb_free_result($result);
}
/* remove table */
maxdb_query($link, "DROP TABLE temp.mycity");
/* close connection */
maxdb_close($link);
?>
The above example will output something similar to:
11111 (Georgetown,NY)
22222 (Hubbatown,CA)
SEE ALSO maxdb_prepare(3), maxdb_stmt_bind_param(3).
PHP Documentation Group MAXDB_STMT_EXECUTE(3)