Correct me if i'm wrong, but by adding "#!/bin/ksh" at the start of a script will force it to run in the korn shell no matter which shell you are currently using?? (2 Replies)
I'm using solaris and i have an old script that an ex employee wrote but i can't seem to get it working. well is just one part of the script
if ($?MC_PROD_DIR == 0) setenv MC_PROD_DIR $HOME/PRODUCTION
source $MC_PROD_DIR/scripts/localenv
** i understand what this part of the script is... (1 Reply)
Can anyone help with these scripts? Im new to this and struggling. Thank you for your help.
Pre-requisites
Create a file with x amount of lines in it, the content of your choice. (Have already done this)
Script 1
Write a script that takes two arguments. The first being a line of text,... (3 Replies)
Anyone know why this won't work?
#!/usr/bin/ksh
for db in `cat /etc/oratab|egrep ':N|:Y' | grep -v \* | cut -f1 -d":"`
do
echo "************************"
echo "database is $db"
echo "************************"
done
I am getting an error on the line... (7 Replies)
Here is my problem.
I have a txt file with a list of user names in both upper case and lower case. I need to remove the names from the passwd file. I want to be able to run a script that looks at my txt list and then removes those names from the passwd file. It would be nice if it backed up the... (3 Replies)
I am trying to write a script to check the STIG our unix boxes. I want to put in checks to determine if certain files or directories are there. For example:
If /opt/SUNWexplo exists
echo "Sun Explorer exists"
else
echo "Sun Explorer is not installed"
I am sure I could write... (2 Replies)
I have a script that will calculate some information about the current directory that I run the script in. How can I have it where it gets an argument from the user(such as a directory) and the script calculate the information for the given directory? Any help is greatly appreciated. (8 Replies)
How can I include a counter in this if statement so only sends out 5 notifications.
# the if statement will check for the lines status, if status is down sends email
if
then
LIST="user@email.com"
mail -s "rje_lines_down" $LIST < ${tmpfile} #sends an email to list
fi
thanks... (2 Replies)
Gents for 2013 I have embarked on learning C and just wrote my first script and need some help. In the learning process, I am trying to understand where I went wrong with my script. The flow of the script is as such:
Enter a number --> check if it is a number --> if it is not a number,print what... (4 Replies)
Discussion started by: metallica1973
4 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)