I would like to ask some info on the script arguments/parameters. Does script arguments had limitation like inside or deep inside the loop in which it will not function as it use to be.
as an example:
$2 not working
Code:
command2 () {
for log in $LOG{1,2,3}
do
if [ -e $log ] && [ -s $log ]; then
echo
echo BEGIN $log
grep -E "$DATE" $log | grep -E "$2" 2> $SCRIPT
echo
echo END $log
echo
fi
done
}
$2 need to declare as another variable to work
Code:
par2=echo $2
command2 () {
for log in $LOG{1,2,3}
do
if [ -e $log ] && [ -s $log ]; then
echo
echo BEGIN $log
grep -E "$DATE" $log | grep -E "$par2" 2> $SCRIPT
echo
echo END $log
echo
fi
done
}
Hi,
I'm a teacher in Germany and I want to set up a classroom with Linux 8.1 PCs. Every User should have a Max of 100 MB available space. Now I need a script which tells everyone how much diskspace is used in a certain subdirectory.
It should work like that: User enters a command like... (1 Reply)
Hi All,
Can anyone please clarify me the following questions:
1. Is there any file size limitation in HP-UX 11i, that I can able to create upto certain size of file (say 2 GB) and not more then that????
2. At max. how many files we can able to keep inside a folder????
3. How many... (2 Replies)
Can anybody help me out in sending parameters from sql*plus script to unix shell script without using flat files..
Initially in a shell script i will call sql*plus and after getting some value from some tables, i want that variable value in unix shell script. How can i do this?
Please tell me... (2 Replies)
Hi,
Please guide to pass an array as a arg to a script...
for example,
I have a script small.sh to find the small no of given arg as below...
#! /bin/sh
# this script is for finding the small number
set -A arr_no_updates
small=$1
i=1
for arr in $@
do
if (3 Replies)
i have a ksh script which internally calls another ksh script.
this inner script has simple commands like shown in the code window.
In the script im trying to do a mv - it fails with arg list too long.
then i try to perform cp and cat - and both are failing with similar error.
:wall:
How is... (4 Replies)
I wish to change the parameter (which I do not understand exactly what it is and I wish to) and be able to use shc with very long bash scripts (2 Replies)
I have a simple bash script on RHEL that works fine when there is one file but when it finds multiple files of same condition I get too many args error.
for i in *
do
if ;then
echo "no files to move"
exit 0
fi
if ; then
... (10 Replies)
Hi All,
I have a script which intends to create as many variables at runtime, as the number of parameters passed to it. The script needs to save these parameter values in the variables created and print them
abc.sh
----------
export Numbr_Parms=$#
export a=1
while
do
export... (3 Replies)
Hello,
I have a web server (apache, php-fpm) with several vhosts sending mail through php. In order to avoid IP blacklisting when spam is sent by a domain i'm looking for a way to setup a rate limit for outgoing mail and when this limit is reached I want to receive an email warning me that a... (1 Reply)
Discussion started by: draugr
1 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)