Hi,
I am writing a bash shell script. How can I tell it to stop. For example, I would like to have something similar to the following:
mike=1
if ; then
STOP THE SCRIPT
fi (3 Replies)
Hello,
I am ftping the file from one unix box to another box. This script works fine. Only problem here is, it is asking the password when ftp the file. How can i stop that. I am providing the password inside the shell script. But it is not accepting this. I need to put this script in crontab.... (5 Replies)
Script_A.sh has
echo "In am in script A"
ksh ## K-shell is invoked.
Script B.sh ## which I am writing...
./script_A.sh
echo "I am in script B"
return 0
When I run:
$> Script_B.sh
$> I am in script A
$>
Basically, on calling Script_A.sh from within Script_B.sh I have the issue of... (2 Replies)
Hi All,
I would like to develop a shell script for stop & start an application server (1-4) on Solaris box. Here are the user requirements for this task.
1. User will input the option which server they wish to stop.
2. Will clear cache files from specific location.
3. ... (1 Reply)
Hi guys, I've found two nifty little scripts on these forums one which detects if the F5 key has been pressed:
#/bin/sh
_key()
{
local kp
ESC=$'\e'
_KEY=
read -d '' -sn1 _KEY
case $_KEY in
"$ESC")
while read -d '' -sn1 -t1 kp
do
_KEY=$_KEY$kp
... (0 Replies)
I have a strange problem.
I have the following in a cron to find files older than a day.
find /dir1/dir2/ ! -name . -prune -name "s*.txt" -type f -mtime +1 -exec echo {} \; | wc -w
It was working fine for the last few days now it suddenly stopped working. I can clearly see files in the... (5 Replies)
Need shell script to:
1/keep polling a directory "receive_dir" irrespective of having files or no files in it.
2/move the files over to another directory "send_dir".
3/the script should only stop polling upon a file "stopfile" get moved to "receive_dir". Thanks !!
My script:
until
do... (0 Replies)
Hi folks,
I am running a shell script it asks for username and password to stop some service, I need to write some script that it will read username and password from my shell script and then sucessfully stop services without prompting username/password query. (13 Replies)
Hi,
I need to create a shell script for automated server patching, with the following scenario:
I have two Linux servers Primary and secondary.
Server patching should start on Primary 1st and then secondary.
1st check both servers are up and running.
Then stop primary and patching will... (1 Reply)
I am writing a bash shell script for GarazLab's "WP EMAIL CRAWLER - AUTO SCRAPER & REAL TIME EXTRACTOR". it contains some commands. I want to stop the shell execution as soon as it encounters an error. how to do it? (8 Replies)
Discussion started by: tahsin352
8 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)