Find all 7 days before the log end of/xusx and move files larger than 10k to/tmpThe first step[[email protected] xusx]# Find/-type f-name "*.log"-mtime +7-size +1k./d.log./passwd.logView time:[[Email protected] ~]# DateMonday, October 10, 2016 01:21:07 CSTStep Two[[email protected] xusx]# Find/-type f-name "*.log"-mtime +7-size +1k-exec MV {}/tmp \;-mtime +7 (7 days ago)-size +1k (file size 1k)Remember to check the time:[[Email protected] ~]# DateMond
number of threads to improve system efficiency.An example of an official document is simply remodeled here to implement an HTTP long connection benchmark tool to diagnose the Web server's long connection processing capability.Feature Overview: Create 10 connections every 10 milliseconds until the number of target connections (such as 10k), and each connection will periodically send a head request to the server to maintain HTTP Keepavlie. The code is
1. Basic commands are the top priority, and are not limited to 150 enterprise-class common commands. You can understand the commands involved in the E-book "The Tree teacher teaches you to learn Linux basic commands."2.shell programming is the basis for scripting languages that you must have without any other language. Shell can have at least three items, MySQL automatic backup script, automatic installation lamp architecture. Automatic monitoring of server performance scripts. Expansion: automa
SPRINGMVC You need to configure the Multipartresolver processor when uploading files - BeanID= "Multipartresolver"class= "Org.springframework.web.multipart.commons.CommonsMultipartResolver"> Propertyname= "Defaultencoding"value= "UTF-8"/> Specifies that the total size of the uploaded file cannot exceed 200KB. Note the limitations of the Maxuploadsize attribute are not for individual files, but for the sum of the capacity of all files - Propertyname= "Maxuploadsi
-bodied state that can't be given before the work. At my age, participating in training institutions to study the students have been very few, if not to find their professional interests, not to find the huaqing vision, I may not give up the work of the ease of the previous, but also did not have the courage to give up after-tax 10k salary. But I now believe that the salary I can get in the future can definitely surpass this!In the future, the greates
device path is not written incorrectlyIf this step fails, return 67 to the main program;Then create two primary partitions on this disk device, a size of 100M, a size of 1G, and if this step fails, return 68 to the main program;Format this two partitions, the file system type is ext3; If this step fails, return 69 to the main program;If the above procedure is normal, return 0 to the main program;2, call this function, and by receiving function execution of the return value to determine its exec
drop-down box linkageMany sites use the dropdown box linkage, is the first drop-down box does not select any items, the second drop-down box has no options. This approach is more cautious and tighter.Below I will teach you how to do the dropdown box linkage:first assign the option to the first drop-down box in the form's Load eventAnd then the first drop-down box has an option.We then write the code for the second drop-down box in the selectedindexchanged () event of the first drop-down box (tha
course! Blessing: The old boy education thrives! Peaches and plums all over the world! The teacher is in good health! Good luck! Students High- paying employment! ; NBS P NBSP ; NBS p; 20 students: xxx NBS P NBSP ; NBS P NBSP ; 2015 year 4 month 24 Old boy Teacher Reviews:The student study hard, hard work, good character, do things very attenti
I haven't been on the forum for a long time. I saw how to make the effort in Issue 9. I don't mean to be weak in Issue 10. I am from black horse, I am Zhou XX, 23 years old. Today is July. I have signed a labor contract today and confidentiality
event from the relay logSo the inference is that SQL thread is slowWhy only slave2,3 slow, and slave1 can keep up with it, began to suspect is the difference in parameter configuration, compared to the/etc/my.cnf found after the configuration no differenceTherefore ruled out this reason, and later with Dstat observation, found busy time, slave io write speed does not goSLAVE1:$ dstat----total-cpu-usage-----dsk/total--net/total----paging-----system--USR sys IDL Wai hiq siq| Read writ| Recv send|
-8 ", ' Accept ':" Application/json, Text/javascript, */*; q=0.01 ", ' Referer ':" Https://www.lagou.com/jobs/list_Java?px=newcity=%E6%88%90%E9%83%BD ", ' X-requested-with ' : "XMLHttpRequest", ' Connection ': "Keep-alive", ' X-anit-forge-token ': "None", ' Cache-control ': "No-cache", ' Postman-token ': "91beb456-8dd9-0390-a3a5-64ff3936fa63"}2. Delay setting and Page crawlAvoid the crawl speed is blocked too fast, set the delay time is 3-5 seconds. Crawls the paging data through a for loop.def
{} \;8, emptyDisplays all the blank files and displays the details: find. -empty-ls #加ls完全画蛇添足, just to illustrate this parameter.9. SizeDisplay files of size 10k: Find. -size 10kShow all files larger than 10k: find. -size +10kShow all files less than 10k: find.-size-10k10, or, and, not, or, and, non-queryFind files that are larger than
1359 Circular Quest
Enter n and K for minimum x (x>1) x (x > 1) to make nx%10k==n%10k n^x \% 10^k = = N \% 10^k
X>1 is required here, because X==1 must have n1%10k==n%10k n^1 \% 10^k = n \% 10^k
First recall the simple multiplication of large numbers.For two large numbers, a, b ,
Make a∗b=c a*b=c
Among them A[i],b
! 4.FdtreeFdtree is a tool for testing the performance of file system metadata and can also be used for stress testing.Parameter meaning:-C Create a directory tree only-D Open Debugging-R only removes the directory tree-L Create a recursive level of the directory, default to 4-d The number of directories to create for each level-F Number of files to be created per directory-O path name when testing starts-S file size (based on block, Linux block size is 4096Bytes), default is 10Fdtree.bash–d 1
for writing, the module runs on version 0.8.15 and ignores any content you specify in package. json.Other precautions and dashboards
I cheered for these guys and hoped they could continue to improve. There is a built-in MongoDB option that will be good, I like the early pricing.
AppFog
Http://appfog.com
AppFog was previously known for PHP Fog and has now been acquired by CenturyLink. You can specify the cloud you want to use, such as AWS, HP, and Az
Force delete all the. svn file directories below the item, find. -name '. SVN '-exec rm-rf {} \;EmptyDisplays all the blank files and displays the details: find. -emptySizeDisplay files of size 10k: Find. -size 10kShow all files larger than 10k: find. -size +10kOr, and, not, or, and, non-queriedFind files that are larger than 10k or contain a demo: Find. -size +
Although a large number of array operations in PHP may be problematic to some extent in the design process, a rough estimate of the memory used by the array is necessary.First feel the memory of the integer array of 1000 elements:
Copy Code code as follows:
Echo Memory_get_usage (). "\ n";
$a = Array ();
For ($i =0 $i $a [$i] = $i + $i;
}
Echo Memory_get_usage (). "\ n";
For ($i =1000 $i $a [$i] = $i + $i;
}
Echo Memory_get_usage (). "\ n";
The output is:
581
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