Moving from AIX 6.1 to RHEL 6.6, I have noticed a few command differences.
One that has been causing issue is a simple echo command when I have to use it this way ->
On the AIX it outputs to "-e" but since RHEL has "-e" as an option for echo and hence it outputs to blank here.
All the code needs to be updated unless anyone here has a better option that you may have found in similar scenario.
Please suggest.
On Linux I could use the `watch` command to loop a command X times. Is there a similar command on AIX? If not, is there a way to write a loop on the command line to do this?
Linux: watch -d -n 60 'db2 list applications show detail | grep Connect | wc -l'
AIX: ??? (2 Replies)
How to convert this linux command to Unix AIX?
I have tried this command and work in CentOS:
tail --line=0 --retry -f --follow=name --max-unchanged-stats=1 logFile.log
But in AIX, the tail haven't "--retry" "--follow=name" option.
Thanks in advance. (1 Reply)
Sir ,
Can any body explain the difference between linux , Unix and AIx on command Reference all the command on AIx and unix is same or not
please reply (2 Replies)
Hello all
the su with -l option is running normal with linux but when i try to run it on unix AIX 5.2.7 it's not working with -l option
any help (6 Replies)
Hi,
I am facing one problem only with mv command not with cp command. I have a test program
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <fcntl.h>
#include <errno.h>
int sync_file(char *file)
{
FILE *fp=NULL;... (6 Replies)
Hi,
Script :
#!/usr/bin/ksh
echo "\n\t\t\t\t Enter your Name : \c"
read name
##############################
I ran the script in LINUX
Enter your Name : abcdefghijklmnopqrstuvwxyz
I ran the script in AIX
Enter your Name : opqrstuvwxyz <
I'm not able to see the... (2 Replies)
To list file permission/access right in octal format, linux has a command 'stat'. For example, we can use the followin -
stat -c %a `find . -type f
Is there any equivalent command in AIX and HP-UX to give the same result as linux 'stat' command?
Please advice. (3 Replies)
I'm having a problem regarding the encoding of my files in Linux and AIX.
I have a file which can be viewed both in Linux and AIX (via NetApp mount). When I checked the encoding, they have difference.
In Linux, the file is encoded as ISO-8859 text. (checked by using "file" command).... (1 Reply)
Hi All,
The scripts developed in AIX can be executed in Red Hat Linux too? Because, we are migrating OS from AIX to LINUX.
Will there be any differences in commands?
Thanks in advance!!!
Regards,
U (2 Replies)
Discussion started by: unme
2 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)