comcast nr

) { this.name = name; } @Override protected NvRen clone() { NvRen nr = null; try { nr = (NvRen) super.clone(); } catch (CloneNotSupportedException e) { nr = new NvRen(this.name, this.head, this.body, this.type); } return nr; }} Now we can have

. Important algorithm analysis: Static int variance_read (struct tslib_module_info * info, struct ts_sample * SAMP, int nr){Struct tslib_variance * Var = (struct tslib_variance *) Info;Struct ts_sample cur;Int COUNT = 0, DIST; While (count If the sample data is marked as "submitted noise", assign the structure related to the current sample data to the noise status and clear the flag.If (Var-> flags var_submitnoise ){Cur = var-> noise;VaR-> flags = ~

);};Implementation in ANSI CStruct sample inst_c = {100, // member_intNull, // * member_str;Myfunc // void (* member_fun) (void );};Implementation in c99Struct sample inst_c99 = {. Member_int = 100,. Member_fun = myfun,};Implementation in GCCStruct sample inst_gcc = {Member_fun: myfun,Member_int: 100,};Similar to the usage in c99, you do not have to worry about the definition of structThe actual order and other undefined data inIt is advantageous when initializing a complex struct.

System connection status: 1. View TCP connection status Netstat-nat | awk '{print $6}' | sort | uniq-c | sort-rnnetstat-n | awk '/^ tcp/{++ S [$ NF]}; END {for (a in S) print a, S [a]} 'or netstat-n | awk'/^ tcp/{++ state [$ NF]}; END {for (key in state) print key, "\ t ", state [key]} 'netstat-n | awk'/^ tcp/{++ arr [$ NF]}; END {for (k in arr) print k, "\ t ", arr [k]} 'netstat-n | awk'/^ tcp/{print $ NF} '| sort | uniq-c | sort-rnnetstat-ant | awk' {print $ NF} '| grep-V' [a-z]' | sort | uniq

" THEN "Bi_annual" WHEN "Literary" THEN "Random" end as "Pattern" FROM sales; Simple statementCopy codeThe Code is as follows: select case when 10*2 = 30 THEN '30 correct'WHEN 10*2 = 40 THEN '40 correct'ELSE 'should be 10*2 = 20'END; Multiple ExpressionsCopy codeThe Code is as follows: select case 10*2WHEN 20 THEN '20 correct'WHEN 30 THEN '30 correct'WHEN 40 THEN '40 correct'END; Use case when in SELECT queryCopy codeThe Code is as follows :/*Mysql> SELECT Name, RatingID AS Rating,-> CASE Rating

1. view TCP connection status netstat-nat | awk #39; {print $6} #39; | sort | uniq-c | sort-rnnetstat-n | awk #39; /^ tcp/{++ S [$ NF]}; END {for (ainS) printa, S [a]} #39; or netstat-n | awk #39;/^ tcp /{ 1. View TCP connection status Netstat-nat | awk '{print $6}' | sort | uniq-c | sort-rn Netstat-n | awk '/^ tcp/{++ S [$ NF]}; END {for (a in S) print a, S [a]}' orNetstat-n | awk '/^ tcp/{++ state [$ NF]}; END {for (key in state) print key, "\ t ", state [key]}'Netstat-n | awk '/^ tcp/{++

, 'analysion ');Insert into sales value (5, 'Oracle ', 589,795,367,284, 'Holiday ');Insert into sales value (6, 'mysql', 953,582,336,489, 'literary ');Insert into sales value (7, 'cplus ', 752,657,259,478, 'literary ');Insert into sales value (8, 'Python', 67,23, 83,543, 'Holiday ');Insert into sales value (9, 'php', 673,48, 625,52, 'plusion ');Select * from sales;SELECT name AS Name,CASE categoryWHEN "Holiday" THEN "Seasonal"WHEN "Sion" THEN "Bi_annual"WHEN "Literary" THEN "Random" end as "Patt

Transferred from Sir Zhang's blog: http://freeze.blog.51cto.com/1846439/829728System Connection Status Chapter:1. View TCP connection Statusnetstat -nat |awk ‘{print $6}‘|sort|uniq -c|sort -rn netstat -n | awk ‘/^tcp/ {++S[$NF]};END {for(a in S) print a, S[a]}‘ 或netstat -n | awk ‘/^tcp/ {++state[$NF]}; END {for(key in state) print key,"t",state[key]}‘netstat -n | awk ‘/^tcp/ {++arr[$NF]};END {for(k in arr) print k,"t",arr[k]}‘netstat -n |awk ‘/^tcp/ {print $NF}‘|sort|uniq -c|sort -rnnetstat -an

1. check whether webshell Trojans are placed in the root directory of the site. determine if they are PHP Trojan scripts based on the statement # find/storage/www/-name quot ;*. php quot; | xargsgrep-in -- color quot; eval ( quot; # grep-I -- include amp; #39 ;*. php amp; #39;-rs 1. check whether the webshell Trojan is placed in the root directory of the site. check whether it is a PHP Trojan script based on the statement.# Find/storage/www/-name "*. php" | xargs grep-in -- color "eval ("#

1. check whether webshell Trojans are placed in the root directory of the site. determine if they are PHP Trojan scripts based on the statement # find/storage/www/-name quot ;*. php quot; | xargsgrep-in -- color quot; eval ( quot; # grep-I -- include amp; #39 ;*. php amp; #39;-rs 1. check whether the webshell Trojan is placed in the root directory of the site. check whether it is a PHP Trojan script based on the statement.# Find/storage/www/-name "*. php" | xargs grep-in -- color "eval ("#

', 673,48, 625,52, 'plusion '); Select * from sales; SELECT name AS Name, CASE category WHEN "Holiday" THEN "Seasonal" WHEN "Sion" THEN "Bi_annual" WHEN "Literary" THEN "Random" end as "Pattern" FROM sales; Simple statement The Code is as follows: Select case when 10*2 = 30 THEN '30 correct' WHEN 10*2 = 40 THEN '40 correct' ELSE 'should be 10*2 = 20' END; Multiple Expressions The Code is as follows: Select case 10*2 WHEN 20 THEN '20 correct' WHEN 30 THEN '30 correct' WHEN 40 THEN '40 correct'

'/^ tcp/{++ arr [$ NF]}; END {for (k in arr) print k, "\ t ", arr [k]} 'netstat-n | awk'/^ tcp/{print $ NF} '| sort | uniq-c | sort-rn netstat-ant | awk' {print $ NF} '| Grep-V' [a-z]' | sort | uniq-c 2. for more than 20 requests, see netstat-anlp | grep 80 | grep tcp | awk '{print $5}' | awk-F: '{print $1}' | sort | uniq-c | sort-nr | head-n20 netstat-ant | awk '/: 80/{split ($5, ip, ":"); ++ A [ip [1]} END {for (I in A) print A [I], i} '| sort-rn |

Language is PHP5 Database is mssql2005 A field in a table [NR] stores a picture that is of type image type Now want to achieve 1) Determine whether the content in NR is a picture, an HTML page, or a PDF file 2) The type judgment is not stored in another field. If it is implemented. For example, the contents of the Nr field is JPG, then how to display it?

. View TCP connection StatusNetstat-nat |awk ' {print $6} ' |sort|uniq-c|sort-rnNetstat-n | awk '/^tcp/{++s[$NF]}; END {for (a in S) print A, s[a]} ' orNetstat-n | awk '/^tcp/{++state[$NF]}; END {for (key in) print key, "\ T", State[key]} 'Netstat-n | awk '/^tcp/{++arr[$NF]}; END {for (k in arr) print K, "\ T", arr[k]} 'Netstat-n |awk '/^tcp/{print $NF} ' |sort|uniq-c|sort-rnNetstat-ant | awk ' {print $NF} ' | Grep-v ' [A-z] | Sort | Uniq-c2. Find the number of requests 20 IP (commonly used to f

System Network Connection Status:1. View TCP connection StatusNetstat-nat |awk ' {print $6} ' |sort|uniq-c|sort-rnnetstat-n | awk '/^tcp/{++s[$NF]};END {for (a in S) print A, s[a]} ' or Netstat-n |awk '/^tcp/{++state[$NF]};END {for (key in) print key, "\ T", State[key]} ' netstat-n | awk '/^tcp/{++arr[$NF]};END {for (k in arr) print K, "T", arr[k]} ' netstat-n |awk '/^tcp/{print $NF} ' |sort|uniq-c|sort-rnnetstat-ant |awk ' {print $NF} ' |Grep-v ' [A-z] |Sort | Uniq-c2. Find the number of reques

1. Check whether the webshell Trojan is placed in the root directory of the site. check whether it is a PHP Trojan script based on the statement.# Find/storage/www/-name "*. php" | xargs grep-in -- color "eval ("# Grep-I -- include = '*. php'-r system \ s * \ (/storage/www/2. Analyze the number of times that access logs appear from the same ip address, such as leeching, attacks, and robots# Cat access. log | awk '{print $1}' | sort | uniq-c | sort-rn3. analyze the specific data access situation

/bb897437, of course, if you want to analyze the packet in detail, you can choose more powerful tools such as sniffer, wireshark, etc.Resources:Http://linux.sheup.com/linux/4/31225.htmlHttp://hi.baidu.com/mqbest_come_on/blog/item/18526dcef73d791a00e928e5.htmlhttp://www.daxigua.com/archives/1355System Connection Status Chapter:1. View TCP connection StatusNetstat-nat |awk ' {print $6} ' |sort|uniq-c|sort-rnNetstat-n | awk '/^tcp/{++s[$NF]}; END {for (a in S) print A, s[a]} ' orNetstat-n | awk '/^

-established PID framework has been built, and the effect of the framework is as follows:Where the process a,b,c is a process group, A is the leader process, so B, and C of the task_struct struct Pid_link members of the node field is adjacent to process a corresponding to the struct PID tasks[1]. struct Upid is correlated by Pid_hash and PID values so that the UPID structure of all namespaces can be found quickly by PID values, and numbers is the last member of a struct PID. Use a mutable array

atomic operations, are essentially a locking mechanism, but relatively small in size. Semaphores and spin locks are protections for a piece of code, a block of memory, or an atomic operation that protects a variable, while a bitwise operation is an atomic operation that sets the individual bits in the variable. Because atomic operations are very fast, they can be executed with a single machine instruction, so no interruption is allowed. NR paramet

in) print key, "\ T", State[key]} ' netstat-n | awk '/^tcp/{++arr[$NF]}; END {for (k in arr) print K, "T", arr[k]} ' netstat-n |awk '/^tcp/{print $NF} ' |sort|uniq-c|sort-rnnetstat-ant | awk ' {print $NF} ' | Grep-v ' [A-z] | Sort | Uniq-c Find requests 20 IP (commonly used to find the source of attack):Netstat-anlp|grep 80|grep Tcp|awk ' {print $} ' |awk-f: ' {print '} ' |sort|uniq-c|sort-nr|head-n20netstat-ant |awk '/:8 0/{split ($5,ip, ":"); ++a