can anyone tell me why this doesn't work? I've been trying to play with character classes and I seem to be missing something here..!
echo "./comparecdna.summary" | awk '/^compare+]summary$/' # returns nothing
echo "./compare_cdna.summary" | awk '/^compare_+]summary$/' # returns nothing
echo... (5 Replies)
So, I need to find the instances of a certain font and remove it....so far in my testing I am using the find command with regex to find a font I want to pull out. However, I seem to be slightly stuck, and I am sure the beard stroking Unix geniuses here can help me.
My example code:
find... (7 Replies)
Hi,
I find it really strange while writing a simple regex to match and print the matched string,
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print "matched string:$1\n" if ($x =~ /(root@rashmi)/);'
matched string:root
dibyajyo@fwtest:~ #perl -e '$x = "root@rashmi>"; print... (1 Reply)
I am having issues escaping special characters in my AWK script as follows:
for id in `cat file`
do
grep $id in file2 | awk '\
BEGIN {var=""} \
{ if ( /stringwith+'|'+'50'chars/ ) {
echo "do this"
} else if ( /anotherString/ ) {
echo "do that"
} else {
... (4 Replies)
Hi all!
I am trying to register a device in an existing device class, but I am
having trouble getting the pointer to an existing class.
I can create a class in a module, get the pointer to it and then use
it to register the device with:
*cl = class_create(THIS_MODULE, className);... (0 Replies)
Hi,
I have following regex condition, however it does not work with different logs having same visible string.I believe it is because of some difference with space character, is it possible to make it work everywhere.
Can someone suggest a better string?
/BIND dn=" uid=/
Thanks. (8 Replies)
I have the two class definition as follows.
class A { public: int a; };
class B : virtual public A{ };
The size of class A is shown as 4, and size of class B is shown as 16. Why is this effect ?. (2 Replies)
Hello,
I want to check whether string has only numeric characters. The following code doesn't work for me
#!/usr/local/bin/bash
if ]]; then
echo "true"
else
echo "False"
fi
# ./yyy '346'
False
# ./yyy 'aaa'
False
I'm searching for solution using character classes, not regex.... (5 Replies)
Hello All,
I am a learner in C++. I was testing my inheritance knowledge with following piece of code.
#include <iostream>
using namespace std;
class base
{
public :
void display()
{
cout << "In base display()" << endl;
}
void display(int k)
{... (2 Replies)
Discussion started by: anand.shah
2 Replies
LEARN ABOUT PHP
session_start
SESSION_START(3) 1 SESSION_START(3)session_start - Start new or resume existing sessionSYNOPSIS
bool session_start (void )
DESCRIPTION session_start(3) creates a session or resumes the current one based on a session identifier passed via a GET or POST request, or passed via
a cookie.
When session_start(3) is called or when a session auto starts, PHP will call the open and read session save handlers. These will either be
a built-in save handler provided by default or by PHP extensions (such as SQLite or Memcached); or can be custom handler as defined by ses-
sion_set_save_handler(3). The read callback will retrieve any existing session data (stored in a special serialized format) and will be
unserialized and used to automatically populate the $_SESSION superglobal when the read callback returns the saved session data back to PHP
session handling.
To use a named session, call session_name(3) before calling session_start(3).
When session.use_trans_sid is enabled, the session_start(3) function will register an internal output handler for URL rewriting.
If a user uses ob_gzhandler or similar with ob_start(3), the function order is important for proper output. For example, ob_gzhandler must
be registered before starting the session.
RETURN VALUES
This function returns TRUE if a session was successfully started, otherwise FALSE.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | If a session fails to start, then FALSE is |
| | returned. Previously TRUE was returned. |
| | |
| 4.3.3 | |
| | |
| | As of PHP 4.3.3, calling session_start(3) after |
| | the session was previously started will result in |
| | an error of level E_NOTICE. Also, the second ses- |
| | sion start will simply be ignored. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
A session example: page1.php
<?php
// page1.php
session_start();
echo 'Welcome to page #1';
$_SESSION['favcolor'] = 'green';
$_SESSION['animal'] = 'cat';
$_SESSION['time'] = time();
// Works if session cookie was accepted
echo '<br /><a href="page2.php">page 2</a>';
// Or maybe pass along the session id, if needed
echo '<br /><a href="page2.php?' . SID . '">page 2</a>';
?>
After viewing page1.php, the second page page2.php will magically contain the session data. Read the session reference for information on
propagating session ids as it, for example, explains what the constant SID is all about.
Example #2
A session example: page2.php
<?php
// page2.php
session_start();
echo 'Welcome to page #2<br />';
echo $_SESSION['favcolor']; // green
echo $_SESSION['animal']; // cat
echo date('Y m d H:i:s', $_SESSION['time']);
// You may want to use SID here, like we did in page1.php
echo '<br /><a href="page1.php">page 1</a>';
?>
NOTES
Note
To use cookie-based sessions, session_start(3) must be called before outputing anything to the browser.
Note
Use of zlib.output_compression is recommended instead of ob_gzhandler(3)
Note
This function sends out several HTTP headers depending on the configuration. See session_cache_limiter(3) to customize these head-
ers.
SEE ALSO
$_SESSION, The session.auto_start configuration directive , session_id(3).
PHP Documentation Group SESSION_START(3)