Hi Folks!
I am a MacUser and am trying to learn Unix for the last few months.
I will explain in detail what I am trying to do, and apreciate you help if you can teach me even if it is a single comand line inside the script.
I own a small company, where I manufacture special gypsums and... (5 Replies)
Actually i am working with two diffrent files having same structure
each file contain Ten diffrent column and i want to write a script
which will compare the colummns of first file with the column of second file and diiference will be send to the first column of third file .
similarly for... (5 Replies)
UNIX shell script (Bourne shell syntax) called
admin_script. This script is described below as a usage summary:
admin_script
Note: if no options are specified, a menu is displayed which allows
users to perform one of the following tasks and then exit. If
incorrect options are provided,... (1 Reply)
Hello,
I have done some BASIC shell scripting/PERL scripting before so I am familiar with the languages. I am not really sure which one would lend itself better to the application I have to write.
I am required to scan the message logs for possible break in attempts. If I use shell scripting... (2 Replies)
Hi All,
I have written the following script. I have just repeated some commands, and I am sure there is a more better way to do it. I hope I one of gurus here will help me make it in a better shape. Here is the script:
#! /bin/sh
sed -i -e "s/test2.xxx/test3.xxx/" -e "s/output2/output3/"... (2 Replies)
I am adapting an Open Step ping server script to Ubuntu 8.10 and one section of my script isn't working
# if there are servers that just went down or came back up, notify
# with high importance
if ; then
echo notifying of servers that are up again or just now down
notify high
# if there... (2 Replies)
If I need delete some disk,
for i in hdisk1 hdisk2 hdisk3 hdisk4
do
rmdev -dl $i
done
if I have more than 100 hdisks, how to write a script like that to delete them? (6 Replies)
Hi there :rolleyes:
I have a folder called backup
it is path is: ~/backup
Inside this folder, there are four files:
~/backup/test1.cpp
~/backup/test2.cpp
~/backup/test3.cpp
~/backup/PATHS.TXT
The fourth file PATHS.TXT contains the original paths for the three files. This is the... (4 Replies)
Hi,
We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Hi All,
I have written the follwing script to take the backup of the file every day
along with the date.
DATE=`date +%Y%m%d`
export DATE
cp var/hr/hr333m.txt cp var/hr/payments/hr333m_$DATE.txt
The file name as follows after taking the backup.
hr333m_20110630.txt
Could you... (3 Replies)
Discussion started by: ajaykumarkona
3 Replies
LEARN ABOUT PHP
round
ROUND(3) 1 ROUND(3)round - Rounds a floatSYNOPSIS
float round (float $val, [int $precision], [int $mode = PHP_ROUND_HALF_UP])
DESCRIPTION
Returns the rounded value of $val to specified $precision (number of digits after the decimal point). $precision can also be negative or
zero (default).
Note
PHP doesn't handle strings like "12,300.2" correctly by default. See converting from strings.
PARAMETERS
o $val
- The value to round
o $precision
- The optional number of decimal digits to round to.
o $mode
- Use one of the following constants to specify the mode in which rounding occurs.
+--------------------+---------------------------------------------------+
| Constant | |
| | |
| | Description |
| | |
+--------------------+---------------------------------------------------+
| | |
| PHP_ROUND_HALF_UP | |
| | |
| | Round $val up to $precision decimal places away |
| | from zero, when it is half way there. Making 1.5 |
| | into 2 and -1.5 into -2. |
| | |
| | |
|PHP_ROUND_HALF_DOWN | |
| | |
| | Round $val down to $precision decimal places |
| | towards zero, when it is half way there. Making |
| | 1.5 into 1 and -1.5 into -1. |
| | |
| | |
|PHP_ROUND_HALF_EVEN | |
| | |
| | Round $val to $precision decimal places towards |
| | the next even value. |
| | |
| | |
|PHP_ROUND_HALF_ODD | |
| | |
| | Round $val to $precision decimal places towards |
| | the next odd value. |
| | |
+--------------------+---------------------------------------------------+
RETURN VALUES
The rounded value
EXAMPLES
Example #1
round(3) examples
<?php
echo round(3.4); // 3
echo round(3.5); // 4
echo round(3.6); // 4
echo round(3.6, 0); // 4
echo round(1.95583, 2); // 1.96
echo round(1241757, -3); // 1242000
echo round(5.045, 2); // 5.05
echo round(5.055, 2); // 5.06
?>
Example #2
$mode examples
<?php
echo round(9.5, 0, PHP_ROUND_HALF_UP); // 10
echo round(9.5, 0, PHP_ROUND_HALF_DOWN); // 9
echo round(9.5, 0, PHP_ROUND_HALF_EVEN); // 10
echo round(9.5, 0, PHP_ROUND_HALF_ODD); // 9
echo round(8.5, 0, PHP_ROUND_HALF_UP); // 9
echo round(8.5, 0, PHP_ROUND_HALF_DOWN); // 8
echo round(8.5, 0, PHP_ROUND_HALF_EVEN); // 8
echo round(8.5, 0, PHP_ROUND_HALF_ODD); // 9
?>
Example #3
$mode with precision examples
<?php
/* Using PHP_ROUND_HALF_UP with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_UP); // 1.6
echo round( 1.54, 1, PHP_ROUND_HALF_UP); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_UP); // -1.6
echo round(-1.54, 1, PHP_ROUND_HALF_UP); // -1.5
/* Using PHP_ROUND_HALF_DOWN with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_DOWN); // 1.5
echo round( 1.54, 1, PHP_ROUND_HALF_DOWN); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_DOWN); // -1.5
echo round(-1.54, 1, PHP_ROUND_HALF_DOWN); // -1.5
/* Using PHP_ROUND_HALF_EVEN with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_EVEN); // 1.6
echo round( 1.54, 1, PHP_ROUND_HALF_EVEN); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_EVEN); // -1.6
echo round(-1.54, 1, PHP_ROUND_HALF_EVEN); // -1.5
/* Using PHP_ROUND_HALF_ODD with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_ODD); // 1.5
echo round( 1.54, 1, PHP_ROUND_HALF_ODD); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_ODD); // -1.5
echo round(-1.54, 1, PHP_ROUND_HALF_ODD); // -1.5
?>
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | The $mode parameter was introduced. |
| | |
| 5.2.7 | |
| | |
| | The inner workings of round(3) was changed to |
| | conform to the C99 standard. |
| | |
+--------+---------------------------------------------------+
SEE ALSO ceil(3), floor(3), number_format(3).
PHP Documentation Group ROUND(3)