In a ksh script on an AIX box running a jillion oracle database processes, I'm setting a variable to one of two possible arguments, depending on cmd line arguments.
FINDIT="ps -ef | grep oracle | grep DBexport | grep rshrc"
-or-
FINDIT="ps -ef | grep oracle | grep prod | grep runback"
I... (3 Replies)
Hi All,
I have declared a variable in script1 and assign a value for it. In script2 i'll call script1 and then I want the value of variables set in script1.
I have tried with export, but in vain.
How can I achive this?
Below is the two scripts.
--script1
#!/usr/bin/ksh
echo $1... (1 Reply)
Hey all,
I'm wondering how you pass variable's that are defined in one script to another script that's been called by that first script.....
Best regards,
Jaz (1 Reply)
Hi all.
I need to pass a value from a script that runs in a sub-shell, back into the calling shell like below (or into script 2 directly):
outer_script
export param=value1
script1 $param
(in script1: export param=value2)
script2 $param
($param is now value1, not value2... (4 Replies)
Friends,
I am using ksh under SunoS. This is what I have
In file1.sh
NOW=$(date +"%b-%d-%y")
LOGFILE="./log-$NOW.log"
I will be using this file through file1.sh as log file.
I have another script file2.sh which is being called inside my file1.sh. I would like to use the same log... (6 Replies)
Hello Everyone,
I want to know how can we make the variables of one script available for the other script?
for example i have three scripts variable_availability.sh,first.sh,second.sh and a file containing variables called common
----------------------------------
cat variable_availability.sh... (2 Replies)
Hello everyone.
I'm trying to create a conf file with variables that my other scripts will use.
I have several scripts that use the same variables, and since I don't know how to read them from an external file, i define them in each script (and then if i want to change one's value i need to... (4 Replies)
I have written a program for some data analysis. It is gettin long. I would like to restructure it so that i can have a master file which controls multiple subscripts in order to make it easier to understand.
I need to be able to define variables in the master script which are used by all three... (2 Replies)
Hello, I have two bash scripts like the following:
script 1:
#!/bin/bash
var=WORLD
bash path/to/second/script/script2.bash
script 2:
#!/bin/bash
echo "HELLO $var"
I expected the output to be "HELLO WORLD" but instead, I get "HELLO". I understand that when I envoke another bash... (2 Replies)
Hi All,
i have written below script, and out put i am looking for both variable PRIMARY_CONF and $STANDBY_CONF but i am getting below error
d1.sh: line 64:
------------------------------
line 64 is:
if -a ; then
----------------------------------
please let me know where is the... (9 Replies)
Discussion started by: amar1208
9 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)