Why would anyone ever type in a command like this:
nohup command &
nohup lets you logout of your telnet session so why add "&" to run it in the background? (1 Reply)
Hello all,
i've written a small piece of code that will read commands from standard input and executes the commands.
Its working fine and is execting the commands well. Accepting arguments too. e.g
#mkdir <name of the directory>
The problem is that its not letting me change the directory i.e... (4 Replies)
Hello,
I just want to ask if killing a specific procees might delete files being read of that process?
Here is the scenario: I execute nohup find . -type f |xargs ls -lrt > nohup1.out &
I noticed that it is taking so much space, I check that there are files so huge
.nfs* and keep on... (2 Replies)
I want to log into a remote server transfer over a new config and then backup the existing config, replace with the new config.
I am not sure if I can do this with BASH scripting.
I have set up password less login by adding my public key to authorized_keys file, it works.
I am a little... (1 Reply)
I need to run multiple commands on remote server using the nohup...
I have tried 2 options
1) rsh <SERVER_NAME> -n "nohup perl $SCRIPTS_DIR/abc.pl ; $SCRIPTS_DIR/xyz.ksh & " &
2) rsh <SERVER_NAME> -n "nohup perl $SCRIPTS_DIR/abc.pl & nohup $SCRIPTS_DIR/xyz.ksh & " &
I need to know if... (2 Replies)
hi
I want to use nohup command with set of commands ..
my goofy sample :
nohup while true do ; date; done
and its not working .
any idea ?
cheers (1 Reply)
Hi all,
I'm new in this forum.
I'm looking for the difference between the HACMP commands with the prefix "cl" and "cli".
The first type are under /usr/es/sbin/cluster/sbin directory and the second are under /usr/es/sbin/cluster/cspoc directory.
I know that the first are called HACMP for AIX... (0 Replies)
Hi Every one , i wrote a script for nohpu ,which checks the service by using the port number and starts if it doesnt hear the port. It works good untill i colse the session. how to make it work even after closing the session .And aslo how to deamoize this script
#!/bin/bash
netstat -ptlen |... (2 Replies)
Shell : bash
OS : Oracle Linux 6.4
I want to save the ouput of a nohup command to file other than nohup.out . Below are my 3 attempts.
For both Attempt1 and Attempt2 , the redirection logs the output correctly to the output file. But I get the error "ignoring input and redirecting stderr to... (7 Replies)
Good afternoon:
I need your help please, Im new at Unix nd specially Unix applicationas like oracle and Ive got this problem:
I was asked to execute the next script using nohup in order to not hang up the session because it was supposed to connect to the database and then insert about 2... (3 Replies)
Discussion started by: alexcol
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)