I am very new to scripting in UNIX and in need of help. I am creating a program that will check a file that has a target time in the form of HH:MM:SS before another program can begin executing. The file with the target time will only have that target time in it and nothing else.
Is there any way... (1 Reply)
I am very new to scripting in UNIX and in need of help. I am creating a program that will check a file that has a target time in the form of HH:MM:SS before another program can begin executing. The file with the target time will only have that target time in it and nothing else.
Is there any... (4 Replies)
I have a file ("modtest") in which I want to update the last date/time block in the lines beginning with a period. Here is a sample:
.ROMULT 10150908EDT 10270908EDT 10010908EDT RANGE
RAWV2 1.00
.ROMULT 10150908EDT 10270908EDT 10010908EDT FGROUP
CHOWANRV 1.00
.RRIMULT 10150908EDT... (10 Replies)
Hello
does anyone know of an awk that will extract log file entries between a specific date and time range, eg:
awk '/15\/Dec\/2010:16:10:00/, /15\/Dec\/2010:16:15:00/' access_log
but one that works?
Or a free command line log file analysis tool/script?
I'd like to be able to view... (2 Replies)
Looking for some help and usually when I do a search this site comes up. Hopefully someone can give me a little direction as to how to use one of these two commands to achieve what I'm trying to do.
What am I trying to do?
I need to take the time value in epoch format returned from the... (5 Replies)
File contains below data,how to validate the date using awk command or any command.
date formate is fixed as "YYYYMMDD"
test1|20120405
test2|20121405
output should be:
test1|20120405
Thanks (2 Replies)
hey guys.
the following line is a line taken from apache's access_log
10.10.10.10 - jdoe "GET /images/down.gif HTTP/1.1" 304
I'm concerned about the field that has the date and time in it.
if assuming the delimiter in the file is a space, then the fourth field will always have the date... (5 Replies)
I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk.
I tried
This is how each line of the file looks like, different date and time in this format
Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th
... (2 Replies)
hi
i want to validate the date and time in filename
filename : mohan.moh.ccyymmdd.ccyymmdd.hhmmss.txt
mohan_moh.20151222.20151222.122442.txt
i want code that check that date given in filename 20151222 in this format ccyymmdd else it mark file is not valid used in my OS detail is AIX 6... (12 Replies)
Discussion started by: MOHANP12
12 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)