hello, i am a newbie who is just starting to use liunx, and I need to accept a string from the terminal and use case to echo a suitable message if the string doesn't have at least 10 characters. Also, how would I do the same thing using expr? (3 Replies)
Hi,
I was going through a file containing hundreds of lines of codes having conditional statement written as:
log()
{
echo $@
}
num=$(/usr/bin/rsh <one_machine> -l root 'ls -d /home/user/db* 2> /dev/null' | wc -w)
(( num > 0 )) && log "db info:"
so,if here the return value(stored in... (2 Replies)
I am learning Unix for the first time. I am playing around with my default profile file to add some script in the KSH. The time format is GMT and I am in eastern time zone. I am trying to script some greetings based upon the time of day using the IF/ELIF conditions. I am getting errors. I have... (2 Replies)
Below is my shell script. I am trying to execute two different BTEQ scripts depending on the day of the week. So on a saturday I will execute a certain BTEQ script and on other weekdays I will run the other script.
#!/bin/ksh
dt=`date +"%a"`
if then
bteq > final_output <<- EOF
.run... (3 Replies)
I need a shell script that will monitor a few conditions and not execute until the these conditions are met. The problem I'm having is that I can not perform a database snapshot (backup) of a sybaseIQ database unless the CPU Status Idle % is above 60% or the snapshot (backup) fails.
If... (2 Replies)
Hi,
I want to perform a conditional search and remove my search string.
Input string: "abcdaabcadgfaarstab"
Character to search: "a"
Condition: Remove all "a" in the input string except if it is "aa"
Output string: "bcdaabcdgfaarstb"
Can you please help me in this? (5 Replies)
I have a unix shell script Test.sh
more Test.sh
echo "Calling dbquery1.sh...."
./dbquery1.sh
echo "Calling dbquery2.sh...."
./dbquery2.sh
more dbquery1.sh
sqlplus -s user1/password1@DB_SID @/tmp/storedprocedures/Hello.rcp
I run Test.sh
However, I do not want dbquery2.sh to be... (3 Replies)
Hi, currently I have a script with conditional checking. But it's not flexible to use, because i must create a more conditional script if there are more keyword (see table) required. Question is: Can I create a more smarter script that will be more flexible?
I appreciate any help anyone can give... (8 Replies)
Hi,
I'm looking at doing a cron job for a script that could take a very short time to complete or a very long time to complete based on variable activity on a server. I don't want to do a weird schedule, but I don't want to be so aggressive that the process attempts to start before another... (14 Replies)
Hello.
I am new this site as well as new to shell scripting and this is my first form... Please help me with the following shell script.
I am executing a shell script to run every 15 min (scheduled in cronjob) and it gives an output in an output file which is e-mailed.
CONCCOUNT=`cat... (1 Reply)
Discussion started by: Jamessteevens
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)