input="test" #input stores the value of the "file" you will be using
while read a b c #creates 3 variables to store the value from the "file"
do
printf "%s\n" $a $c $b #prints out all 3 variables in a format you want"
done < $input #indicate which "file" to carry out the function
This is a simple method to solve your query. Hope it helps
One of the things that I have learned to take for granted in the Win32 world is the cut, copy and paste hotkeys of ^X, ^C and ^V.
I use these keys all the time under Win32 to copy and paste information from one GUI into another GUI.
My question is, does X have a similiar standard?
... (4 Replies)
hi i am new to shell scripting,
i have been trying to cut columns numbered 1,4 of a file consisiting of 4 columns. Each column is seperated by 2 spaces.
for example:
john 6102097199 tennessee usa
michel 6734590899 texas USA
now, i need to cut the name... (3 Replies)
Hello
I have a very large file where say each line is made up of 80 characters.
I want to cut the characters from 20-30 and 50-60 from each line and then insert a delimiter between them (# or | etc).
eg
input file
000000000131.12.20990000590425246363375670011200140406... (5 Replies)
Hi i need a favour
i have a file which has some trillions of records. The file is like this
11111000000000192831840914000000000000000000000000000
45789899090000000000000000011111111111111111111111111
I want to cut specific postions in each line like cut1-3 and assisgn it to a variable and... (5 Replies)
hi,
I have a file with content like this for an employee:
EmployeeID
101
Day_type, day
vacation,1/2/2009
sick day, 3/2/2009
personal day, 4/5/2009
jury duty day, 5/5/2009
how do I make the result to show:
EmployeeID,Day_type,day
101,vacation,1/2/2009
101,sick day,... (6 Replies)
Hi,
Need a help with shell script. I have to search for a string in one of the file, if match found, copy the line to a new file and delete the line from the exisiting file.
eg:
83510000000000063800000.1800000.1600000.1600000.2400000.1800000.2000000.21... (6 Replies)
I have a file which contains 3 fields separated by tabs example
andrew kid baker
I need to swap kid and baker using cut and paste commands how is this to be done?
Thanks (1 Reply)
Hi,
I have a file like this -->
Consider z as space
#cat filename
ABC
<!--Nzzzzz-->
<!--RESUMO-->
EFG
XYZ
<!--Nzzzzz-->
<!--RESUMO-->
I need to cut the <!--RESUMO--> part and paste it to the previous line so that the file will look like this-->
ABC
<!--Nzzzzz--><!--RESUMO-->... (4 Replies)
Hello,
I have some problem in cut or paste command for my text data.
Input1.txt :
I use cut command :
cut -d ' ' -f1 Input1.txt > result.txt result.txt :
Then, I use paste command to merge result.txt.
paste -d ' ' result.txt Input1.txt > output.txt output.txt showed :
I use cut... (1 Reply)
Discussion started by: awil
1 Replies
LEARN ABOUT PHP
mysqlnd_ms_query_is_select
MYSQLND_MS_QUERY_IS_SELECT(3) 1 MYSQLND_MS_QUERY_IS_SELECT(3)mysqlnd_ms_query_is_select - Find whether to send the query to the master, the slave or the last used MySQL serverSYNOPSIS
int mysqlnd_ms_query_is_select (string $query)
DESCRIPTION
Finds whether to send the query to the master, the slave or the last used MySQL server.
The plugins built-in read/write split mechanism will be used to analyze the query string to make a recommendation where to send the query.
The built-in read/write split mechanism is very basic and simple. The plugin will recommend sending all queries to the MySQL replication
master server but those which begin with SELECT, or begin with a SQL hint which enforces sending the query to a slave server. Due to the
basic but fast algorithm the plugin may propose to run some read-only statements such as SHOW TABLES on the replication master.
PARAMETERS
o $query
- Query string to test.
RETURN VALUES
A return value of MYSQLND_MS_QUERY_USE_MASTER indicates that the query should be send to the MySQL replication master server. The function
returns a value of MYSQLND_MS_QUERY_USE_SLAVE if the query can be run on a slave because it is considered read-only. A value of
MYSQLND_MS_QUERY_USE_LAST_USED is returned to recommend running the query on the last used server. This can either be a MySQL replication
master server or a MySQL replication slave server.
If read write splitting has been disabled by setting mysqlnd_ms.disable_rw_split, the function will always return
MYSQLND_MS_QUERY_USE_MASTER or MYSQLND_MS_QUERY_USE_LAST_USED.
EXAMPLES
Example #1
mysqlnd_ms_query_is_select(3) example
<?php
function is_select($query)
{
switch (mysqlnd_ms_query_is_select($query))
{
case MYSQLND_MS_QUERY_USE_MASTER:
printf("'%s' should be run on the master.
", $query);
break;
case MYSQLND_MS_QUERY_USE_SLAVE:
printf("'%s' should be run on a slave.
", $query);
break;
case MYSQLND_MS_QUERY_USE_LAST_USED:
printf("'%s' should be run on the server that has run the previous query
", $query);
break;
default:
printf("No suggestion where to run the '%s', fallback to master recommended
", $query);
break;
}
}
is_select("INSERT INTO test(id) VALUES (1)");
is_select("SELECT 1 FROM DUAL");
is_select("/*" . MYSQLND_MS_LAST_USED_SWITCH . "*/SELECT 2 FROM DUAL");
?>
The above example will output:
INSERT INTO test(id) VALUES (1) should be run on the master.
SELECT 1 FROM DUAL should be run on a slave.
/*ms=last_used*/SELECT 2 FROM DUAL should be run on the server that has run the previous query
SEE ALSO
Predefined Constants, user filter .Runtime configuration, mysqlnd_ms.disable_rw_split, mysqlnd_ms.enable.
PHP Documentation Group MYSQLND_MS_QUERY_IS_SELECT(3)