The PID of the bash shell parent process
Prompt_command
is set, this command is executed before the command line main prompt is displayed.
PS1
Main command line prompt string
PS2
Times command line prompt string
PS3
Prompt for the Select command
PS4
If you use the Bashde-x parameter, the prompt that appears before the command line is displayed
.[[email protected] home]$ echo $SHELL display the current media/bin/bash7.lang/languge: and language-related environment variables, users in multiple languages can modify this environment variable.[Email protected] home]$ echo $LANG/langugeen_US. Utf-8/langugeTwo, the userPS1; command basic prompt, for root user is #, for normal user is $[Email protected] home]$ echo $PS 1[\[email protected]\h \w]\$PS2: Secondary prompt[[email protected] home]$ echo
/extensions/no-debug-zts-${debugfile}ln-sf/www/wdlinux/nginx_php-${ver}/lib/php/extensions/no-debug-zts-${debugfile}/www/wdlinux/nginx_php-${Ver}/lib /php/extensions/no-debug-non-zts-${debugfile}fificd. RM-RF php-${ver}/RM-RF php-${VER}.TAR.GZRM-RF Iconv_ins.shechoecho"---------------------www.itbulu.com-------------------------------------"Echo"PHP UPDATE finish!"Echo"Now YOUR PHP VERSION is ${ver}!"Echo"UPDATE SCRIPT made by Jason"Echo"THANK for USING"Echoecho"WDCP (C) COPYRIGHT"Echoecho"ps:i
("select * from employee_table
WHERE LASTNAME =?");
As with the Createstatement method, the purpose of the overloaded Preparestatement method is to provide support for the specified ResultSet feature. The Preparestatement method also has variants that can be used with automatically generated keys. Here are some examples of valid Preparestatement method calls:
Example:preparestatement method
Note: Please read the code example does not guarante
This demo demo shows that Android interacts with the server through get and POST request methods, so you need to build a server test that you can use Tomcat for reference: http://blog.csdn.net/youmingyu/article/ details/52524006, Demo: Download address.
Note Open Access network permissions:
Source:
Package fk.androiddemo_007;
Import Android.os.Handler;
Import Android.os.Message;
Import android.support.v7.app.AppCompatActivity;
Import Android.os.Bundle;
Import Android.view.View;
Import Android
* ()
{
Return*ptr;
}
t* operator-> ()
{
Returnptr;
}
Voidget_ptr ()
{
Returnptr;
}
~ unique_ptr ()
{
if (PTR)
{
Deleteptr;
Ptr= NULL;
}
}
Private
Unique_ptr (unique_ptr
Unique_ptr
T*ptr;
};
Why unique_ptr the implementation of the anti-copy must be a private declaration.
1, only to the common Declaration, do not give the definition. (The user can redefine the definition outside the class)
2, only the definition of private (but within the class can be adjusted copy construction and assignment o
.
UNIQUE_PTR
unique_ptr
P2 =p1;
Statement 3 Here is illegal, avoiding the problem that P1 no longer point to valid data, so unique_ptr is more secure than auto_ptr (compile-time errors are more secure than potential program crashes).
Unique_ptr
Unique_ptr
return temp;
}
unique_ptr
PS =demo ("a");
If Unique_ptr is a temporary right value, the compiler allows this, and if the source unique_ptr will exist for some time, the compiler will prohibit it.
C++11 has a standard library function std::mo
First you have to introduce Bootstrap and jquery.
Recommend a cdn:http://cdn.gbtags.com/index.html
And then you start writing HTML code. If you don't want to change the display, the CSS will actually be 2333
Because the HTML code is more than that, here are three sections and then finally a whole HTML code
First, as shown in the previous illustration, this effect requires understanding the following components of the bootstrap
• Navigation bar• button• Forms• Drop down menu
In fact, there
$filename = sprintf ("%s/%d.html", $dirname, $k);File_put_contents ($filename, Str_repeat ("111", 100));}}}}
Find traverse once takes 35 seconds:[modify@www Test] $time find./-type F |wc-l1024000Real 0m35.679sUser 0m1.559sSYS 0m9.946sThe rsync of Baidu to the Remove method first creates an empty directory empty and then synchronizes with rsync[Root@www modify]# time rsync--delete-before-d empty/test/Real 1m13.964sUser 0m1.933sSYS 0m35.384sGoogle to the rsync removal method[modify@www
Mailpath
Features are similar to mail. But you can use a group of files, separated by a colon, and each file can be followed by a question mark and a message sent to the user
SHELL
The path name of the shell
TERM
Terminal type
Tmout
Shell automatic exit time, in seconds, if set to 0 to prevent the shell automatically exit
Prompt_command
Specify commands to be executed before the main command prompt
PS1
password, then no longer need to enter the password. Less to enter the SSH account password, is not more secure. PS2: again restrict IP access SSH, the server will be more secure.Vi/etc/hosts.allow Sshd:172.16.x.x:allow #在最后一行写入172.16.x.x/172.16.0 (paragraph)Vi/etc/hosts.deny Sshd:all PS3: Suppose you want to delete the public key, do not select the public key when connecting SECURECRT, and then enter the SSH configuration file to modify the followin
it's worse to use WordArt as the text. This is an example of using fonts incorrectly.
The last thought before I let you do it yourself. If your WordArt looks stylish and modern, use a sans serif font for the body part, and if your WordArt looks formalized, use a serif font as a second font.
PS2: Line fonts and sans serif fonts
Serif or San Serif?
Serif is the end of a stroke, such as the beginning and end of M. The Serif was developed by Roma
, and symbols in your interface look beautiful, and more importantly, more readable.
The Sub bar says: In the 12th, we typically use 18-20-pixel spacing. The 14th-song body usually uses 22-24-pixel spacing.It is very well agreed that this line spacing fluctuates with the number of single words. I think that 17 is acceptable if the number of words in a single line is less than 12px.
Text line words best not more than 50, the first page of the title text to 8-20 words is preferred.
12 and
too many fonts in a design that are taboo, and there's nothing like a flyer that prints them in 8 different fonts, and it's worse to use WordArt as the text. This is an example of using fonts incorrectly.
The last thought before I let you do it yourself. If your WordArt looks stylish and modern, use a sans serif font for the body part, and if your WordArt looks formalized, use a serif font as a second font.
PS1: The first translation of things, some places may not necessarily correct, read
parameters. The first argument replaces an analogy. The special is $, which is the file name of the current shell program, so the $ $ is not a positional parameter and does not include the $ $ when displaying all the current positional parameters.
8, Shell environment variables.
When the shell starts executing, it has defined some variables that are relevant to the system's working environment, and the user can redefine it and adapt it to suit its own use.
Home: The full path name used to hold
:
7. Enter the E:\php directory, rename the file php.ini-development renamed PHP.ini and copy to the desktop;
8. The following need to modify the desktop php.ini file,After opening the php.ini file, use the shortcut key Ctrl+f search Data.timezone Modify to Data.timezone= "Asia/shanghai" to modify the current time zone
Activate the extension option you need, and the semicolon "before the corresponding DLL statement"; Delete
Extension=php_gd2.dllExtension=php_mbstring.dllExtension=php_m
to each day, and an average of 200,000 new users were added daily.
According to the Flow statistics agency Alexa number, 酷6网 is China's 46th largest popular website. 2006, The Advertiser has Hisense, Lenovo and so on, now includes Disney, Nokia, McDonald's, Motorola, Nike and Ford and so on. Baidu also signed a 2-year cooperation agreement with 酷6网 and invested in the company. Draper Fisher Jurvetson, a venture capital company, recently invested.
We first visited the sales team, which includes
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