i need to divide this count by 2, what variable can i use in my script?
26 hcscprod_cpus_totals /2 = 13
13 hcncprod_cpus_totals /2= 6.5
541 ktazp_cpus_totals /2= 270.5
346 ktazd_cpus_totals /2=173
110 ktazi_cpus_totals /2=55
10 ktazq_cpus_totals /2=5 (2 Replies)
Dear,
i want to devide the first 4 values from a raw over the next 4 values like the following:
$1+$2+$3+$4 / $5+$6+$7+$8
using AWK ....can someone help me?
Sanks (1 Reply)
Hi All,
I am wondering if anyone can help me with this. I have a long list of results and I want to divide them into several pages. Any ideas of how to do this? I'm using perl languange.
eg:
Output file consist of 400 data then would like to divide it into 50 data per pages.
any help on... (2 Replies)
divide input values into specified number (-100 or -200) according to the key (a1 or a2 ....)
For ex: if we give -100 in the command line it would create 100 number intervals (1-100, 100-200, 200-300) untill it covers the value 300 in a1.
Note: It should work the same even with huge numbers... (3 Replies)
Hi All,
here D Prints the bytes value .plz help to convert the variable D value to MB in new variable $E
D=`more $C |awk '{print $6;}'`
Thanks in Advance.:) (3 Replies)
F= `expr $E/$S`
output
test5.sh: line 45: 1296863.27001857757568359375/21997: No such file or directory
can any one help me ,i just want to divide the $E/$S and Print o/p in F. (3 Replies)
Hi,
I've been working on a few scripts and have been getting great info.
How, would I include in the below script, how I would let a user know that if they divide a SECOND number by zero, that they would get a divide by zero error? What's the easiest way of working this?
Cordially,
joe.
... (1 Reply)
Dear ALL,
I have sample file :
tx_bytes: 2422,
tx_packets: 13,
uptime: 16119,
tx_bytes: 2342,
tx_packets: 14,
uptime: 11009,
tx_bytes: 252,
tx_packets: 12,
uptime: 3113,
my formula :
minutes=$(( uptime/60%60 ))
hours=$(( uptime/60/60%24 )) (3 Replies)
Discussion started by: gnulyn
3 Replies
LEARN ABOUT PHP
eval
EVAL(3) 1 EVAL(3)eval - Evaluate a string as PHP codeSYNOPSIS
mixed eval (string $code)
DESCRIPTION
Evaluates the given $code as PHP.
Caution
The eval(3) language construct is very dangerous because it allows execution of arbitrary PHP code. Its use thus is discouraged.
If you have carefully verified that there is no other option than to use this construct, pay special attention not to pass any user
provided data into it without properly validating it beforehand.
PARAMETERS
o $code
- Valid PHP code to be evaluated. The code mustn't be wrapped in opening and closing PHP tags, i.e. 'echo "Hi!";' must be passed
instead of '<? echo "Hi!"; >'. It is still possible to leave and reenter PHP mode though using the appropriate PHP tags, e.g.
'echo "In PHP mode!"; ?>In HTML mode!<? echo "Back in PHP mode!";'. Apart from that the passed code must be valid PHP. This
includes that all statements must be properly terminated using a semicolon. 'echo "Hi!"' for example will cause a parse error,
whereas 'echo "Hi!";' will work. A return statement will immediately terminate the evaluation of the code. The code will be exe-
cuted in the scope of the code calling eval(3). Thus any variables defined or changed in the eval(3) call will remain visible
after it terminates.
RETURN VALUES eval(3) returns NULL unless return is called in the evaluated code, in which case the value passed to return is returned. If there is a
parse error in the evaluated code, eval(3) returns FALSE and execution of the following code continues normally. It is not possible to
catch a parse error in eval(3) using set_error_handler(3).
EXAMPLES
Example #1
eval(3) example - simple text merge
<?php
$string = 'cup';
$name = 'coffee';
$str = 'This is a $string with my $name in it.';
echo $str. "
";
eval("$str = "$str";");
echo $str. "
";
?>
The above example will output:
This is a $string with my $name in it.
This is a cup with my coffee in it.
NOTES
Note
Because this is a language construct and not a function, it cannot be called using variable functions.
Tip
As with anything that outputs its result directly to the browser, the output-control functions can be used to capture the output of
this function, and save it in a string (for example).
Note
In case of a fatal error in the evaluated code, the whole script exits.
SEE ALSO call_user_func(3).
PHP Documentation Group EVAL(3)