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6.5 Zip compression tool可打包目录zip 1.txt.zip 1.txtzip -r 123.zip 123/unzip 1.txt.zipunzip 123.zip -d /tmp/unzip -l 123.zip-l 查看压缩包里的文件列表6.6 Tar Pack可打包目录tar -cvf 123.tar 123tar -cvf aming.tar 1.txt 123tar -xvf aming.tartar -tf aming.tartar -cvf aming.tar --exclude 1.txt --excl

Zj-5-2 [Email protected] Local computer, expect command available, rhel_5.9 192.168.101.206 Zj-6-2 [Email protected] remote computer, rhel_6.5 192.168.101.207 Kylin3 [Email protected] remote computer, kylin_3.0 If each computer has an Oracle database installed, its environment variables are ORACLE_HOME set in file /home/oracle/.bash_profile :[[email protected] ~]# grep ' oracle_home '/home/oracle/.bash_profile

This article mainly introduces Python and shell variable transfer methods, using environment variables, pipelines and other methodsPython--Shell:1. Environment variablesCopy CodeThe code is as follows:Import OSvar=123 or var= ' 123 'Os.environ[' var ']=str (Var) #environ的键值必须是字符串Os.system (' echo $var ')Copy CodeThe code is as follows:Import OSvar=123 or var= '

1.pt-archiverFunction Introduction:Archive records from tables in a MySQL database to another table or fileUsage Introduction:Pt-archiver [OPTION ...]--source DSN--where whereThis tool simply archives old data and does not have much impact on OLTP queries on online data, you can insert data into other tables in another server, or write to a file to facilitate importing data using the Load Data infile command. Alternatively, you can use it to perform a delete operation. This tool deletes the data

WTL or CString standard of the Cstring,windows Template Library (Template) of Microsoft Foundation Classes (MFC) Library (STL) String class, then you must be familiar with the String.Format method. This method is often used in C # to format strings, such as the following: int x = 16;Decimal y = 3.57m;String h = String.Format ("Item {0} sells at {1:c}", X, y);Console.WriteLine (h);On my machine, I can get the following output: Item sells at￥3.57Maybe the output on your machine is not the same

', bid => 'b1', 'num' => '123 '), // b1 end array (aid => 'a1', bid => 'b2', 'num' => '123 '), // put the remaining 100 of the num value of a1 into the b2 a1 end array (aid => 'a2 ', bid => 'b2', 'num' => '123 '), // obtain the b2 end array (aid => 'a2 ', bid => 'b3', 'num' => '123') from 100 of b2 difference '), // pu

string to the standard output. The output string is separated by blank characters and a line break is added at the end. Parameters: -N: the last line break when the string is displayed -E supports escape characters in the following formats.-E does not support escape characters in the following formats. /A sends an alert; /B. Delete the previous character; /C does not end with a line break; /F line feed, but the cursor remains at the original position; /N wrap and move the cursor to the beginnin

. Therefore, if the file does not exist, the downloaded content may be empty. If (file_exists (dirname ($ file )))You determine whether the directory exists, not whether the file exists. Therefore, if the file does not exist, the downloaded content may be empty. If it is changed to: if (file_exists ($ file), no way .... The second if is not entered, indicating that your uploads/resource/directory does not exist. of course, the file does not exist. The second if is not entered, indicating that

Photoshop maintains good usability while having powerful functions, this is largely due to its neat and refined interface and easy-to-use customization (except for its large number of tools and commands ). In fact, Photoshop has a lot of amazing "hidden" features. No matter how many years you have used Photoshop, you will discover more and more things in the east and west. I doubt who claims that he knows about photoshop "all" (unless it is possible that Adobe's Software Engineer wants ). The fo

Android activity and view for the keyboard monitoring, mainly the following methods// Press the button Public boolean onKeyDown (int keycode, keyevent event) {}// keys bounce public boolean onKeyUp (int keycode, KeyEvent event) {}// Constant Press Public boolean onkeylongpress (int keycode, keyevent event) {}The first thing we look at today is to press and bounce two events, the transfer relationship between activity and view.Let's look at the following test codeThe first is the custom vi

: This article mainly introduces the differences between die and exit in php. For more information about PHP tutorials, see. First think about a question: What will the following code display to the page? 1 2 die(123); 3 ?> For a while, I always thought that the page would display 123, but the practice result tells me that the answer is

Only one DNS server is not insured, now give him a configuration from the server.Install the configuration DNS server on another virtual machine. First look at the virtual machine IP: 192.168.1.111IfconfigGive the bind and dig commands from the installationYum install-y bindYum Install-y bind-utilsTo open the master configuration fileVim/etc/named.conf - 127.0. 0.1 ; }; Listen :1;}; Change to // listen-on port 127.0.0.1;}; // listen-on-v6 port: 1;};Comment out the default l

Can array_key_exists () search for the key name of a two-dimensional array? array nbsp; ( nbsp; 1 = gt; '000000', 3 = gt; 'ssssaaaa ', nbsp; 'ssaaaa' = gt; array (19 = gt; 'SS array_key_exists () can I find the key name of a two-dimensional array? Array ( 1 => '123 ', 3 => 'ssaaaa ', 'Ssaaaa' => array (19 => 'sssssss ',), 4 => '123 ', 5 => '123 ', 6