%w output This week is the first week of the month
Outputs the time separated by a colon:
650) this.width=650; "style=" width:418px; "src=" https://note.youdao.com/yws/public/resource/ aafe5be659df1362210cddcacdb14763/xmlnote/officee41c9f88174d4b06820412d8f40a7c37/5046 "alt=" 5046 "/>
Convert timestamp to current date:
650) this.width=650; "style=" width:450px; "src=" https://note.youdao.com/yws/public/resource/ aafe5be659df136221
[Email protected] ~]# date +%t10:05:50Date +%s: TimestampDisplays the number of seconds from January 1, 1970 00:00:00 to the current experience[Email protected] ~]# date +%s1517969292Time Stamp conversion:[[Email protected] ~]# date +%s-d "20180207 10:10:00"1517969400[Email protected] ~]# date-d @1517969400Wednesday, February 07, 2018 10:10:00 CST
Print specified date time
Sometimes you need to use the date or time before n days (hours, min
phone_number row updated.
In session 1, the hr1 user realizes that itUpdated the GHIMURO row withWrong phone number. The user startsNew transaction and updates the phoneNumber in the row to 515.555.1235,Which locks the GHIMURO row.
T7
last_name GHIMURO .
In session 2, the hr2 user queriesHr. employees for the Himuro record.The record shows the phone numberUpdate committed by session 1 at t4.Oracle Database read consistencyEnsures that session 2 does not seeUncommit
extracting the last element value from the end of the array and removing the last element from the original array.$ Value = array_pop ($ arr );
// Opposite to array_pop, extract an element value from the array header and remove the element from the original array.$ Value = array_shift ($ arr );
// Let the first parameter array reach the length of the second parameter value and add the third parameter as an element to the end of the first parameter array. The index starts from the minimum value
as elements to the beginning of the first parameter array, the key value is re-accumulated from the first element at 0, the key value of the original non-numeric value remains unchanged, the original element sort position is unchanged, and the array length after the return$int =Array_unshift ($arr, "T1", "T2");//Returns the last element value extracted from the end of the array and rejects the last element from the original array$value =Array_pop ($arr);//Array_pop instead, extracts the value o
first parameter array, the key value is re-accumulated from the first element at 0, the key value of the original non-numeric value remains unchanged, the original element sort position is unchanged, and the array length after the return$int =array_unshift ($arr, "T1", "T2");Returns the last element value extracted from the end of the array and rejects the last element from the original array$value =array_pop ($arr);Array_pop instead, extracts the value of an element from the header of an array
, that is, shutdown# Shutdown-r now # restart immediately
Restart example
# Shutdown-k now 'reboot' # send a warning message, but it does not actually shut down.# Shutdown-t10-r now # restart immediately, but the delay between warning and delete processes is 10 seconds.# Init 6 # immediately switch the system running level to 6, that is, restart# Shutdown-r + 10 'reboot' # restart after 10 minutes# Shutdown-c # cancel the previous shutdown command# S
= array_pad ($ arr, 10, "t10"); // return a new array that removes unnecessary duplicate elements from the original array, the original array does not change $ array = array_unique ($ array1); // breaks the key value of the original array and sorts it from small to large, the index starts from the number 0 and recalculates $ int = sort ($ array); // opposite to sort, the index is re-ordered in descending order of the element value askecode value, the
modifications. FC-SCSI is the most important means of communication between storage systems and servers. SCSI extends the COPY command, a new ANSI T10 standard, and supports direct data movement between storage systems on the SAN through data migration applications.
The advantages of FCP-SCSI over bus connections have been proven on the storage lan that FCP-SCSI provides higher performance (100 M/sec ), A longer connection distance (up to 10 kilomete
Laravel5.1 an empty project, or a link to the database, takes several records of a table and displays them: From a ab-t10-c10127.0.0.1laravel511publicindex.php or ab-n100-c100127.0.0.1laravel511publicindex.php... laravel5.1 is an empty project or a database linked to show several records of a table:
Use AB-t 10-c 10 http: // 127.0.0.1/laravel511/public/index. php
Or AB-n100-c100 http: // 127.0.0.1/laravel511/public/index. php
Result request per time:
, the sorting position of the original element remains unchanged, and the returned array Length$ Int = array_unshift ($ arr, "t1", "t2 ");
// Returns the result of extracting the last element value from the end of the array and removing the last element from the original array.$ Value = array_pop ($ arr );
// Opposite to array_pop, extract an element value from the array header and remove the element from the original array.$ Value = array_shift ($ arr );
// Let the first parameter array reach t
ApacheBenchmark (AB) is an apache tool used for HTTPServer testing. It can accept a single URL, load it repeatedly in the way of multiple specified independent threads, and use different command line parameters to control the number of accesses and the maximum number of concurrent threads.
Apache Benchmark (AB) is an apache tool used for HTTP Server testing. It can accept a single URL, and then repeat loading according to the specified multiple independent threads, and use differentCommandThe r
the original array.$ Value = array_pop ($ arr );
// Opposite to array_pop, extract an element value from the array header and remove the element from the original array.$ Value = array_shift ($ arr );
// Let the first parameter array reach the length of the second parameter value and add the third parameter as an element to the end of the first parameter array. The index starts from the minimum value and returns the result, the original array does not change$ Array1 = array_pad ($ arr, 10, "
unchanged, the original element sort position is unchanged, and the array length after the return is $int=array_unshift ($arr, "T1", "T2");//Returns the last element value extracted from the end of the array and removes the last element from the original array $value= Array_pop ($arr);//array_pop instead, extracts the value of an element that returns an array header and strips the head of an element from the original array $value=array_shift ($ARR);//Let the first parameter array reach the seco
Www.2cto.com: if your computer must be authorized to open, or you can only open it yourself, please refer to this article.1. first, determine the drive letter of the USB flash drive. You can insert your own USB flash drive, and then you can see the drive letter. This step is very important. If the drive letter is wrong, let your computer sleep;2. Create a file in the USB flash drive. The file name and extension are all input. For example, the file created by the author is 123.lj;3. Create a batc
C # expressionsexpressions, which combine variables, literals, and operators to create expressions, are the basic components of a calculation.Literal: Is the number, string, or value typed in the source code that represents the specified type. There are several commonly used: integers, real numbers, characters, strings .Full digital polygon "can also use hexadecimal table":
123//Plastic
123L//Long Plastic
123U//unsigned shaping
123UL//unsigned long shaping
of the first parameter array, the key value is re-accumulated from the first element at 0, the key value of the original non-numeric value remains unchanged, the original element sort position is unchanged, and the array length after the return$int=Array_unshift($arr, "T1", "T2"); //returns the last element value extracted from the end of the array and rejects the last element from the original array$value=Array_pop($arr); //Array_pop Instead, extracts the value of an element from the header of
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