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publication Tougher punishment more strict punishment Here's a quick review of the issue: What is net neutrality all about? The principle generally means that content isn' t prioritized above others, so that a user can go where he wants and do what he wants on the Internet without the interference of his broadband provider. supporters of net neutrality protections say that without the rules, Internet service providers like Comcast and Time Warner wil

Awk data input has two sources: standard input and file. The latter method supports multiple files. For example:1. shell Pathname Expansion mode: awk '{...}' *. txt # *. Txt is first interpreted by shell and replaced with all *. txt files in the current directory,# If 1.txtand 2.txt are recorded in the preceding directory, the command is awk '{...}' 1.txt 2.txt 2. Specify multiple files directly: awk '{...}' a.txt B .txt c.txt...# Awk's processing process for multiple files is to read the conten

First, sed (Stream Editor)1, positioning line:Sed-n ' 12,~3p ' pass #从第12行开始 until the next 3 multiples line (12-15 lines)Sed-n ' 12,+4p ' pass #从第12行开始, 4 consecutive lines (12-16 lines)Sed-n ' 12~3p ' pass #从第12行开始, interval 3 lines output once (12,15,18,21 ...)Sed-n ', $p ' pass #从第10行至结尾Sed-n ' 4!p ' pass #除去第4行2. Regular: '/regular type/'Sed-n '/root/p '/etc/passwdSed-n '/^root/p '/etc/passwdSed-n '/bash$/p '/etc/passwdSed-n '/ro.t/p '/etc/passwdSed-n '/ro*/p '/etc/passwdSed-n '/[abc]/p '/e

] #define ARM_R6UREGS[6] #define ARM_R5UREGS[5] #define ARM_R4UREGS[4] #define ARM_R3UREGS[3] #define Arm_r2uregs[2]# Define ARM_R1UREGS[1] #define ARM_R0UREGS[0] #define ARM_ORIG_R0UREGS[17]thread_struct definition under ARM architecture (machine instructions can be stored in opcode form with memory addresses for debugging purposes): 　 　 Union DEBUG_INSN {u32arm;u16thumb;}; struct Debug_entry {u32address;union debug_insninsn;}; struct Debug_info {intnsaved;struct debug_entrybp[2];}; struct Thr

awk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text informationThe awk processing process:Each row is processed in turn, and then the outputawk command form:awk [-f|-f|-v] ' begin{}//{command1; Command2} end{} ' file [-f|-f|-v] Large parameter,-F specify delimiter,-F call script,-v define variable Var=value ' Initializes the code block with code block begin, and initialize

Multi-file handling for awk:AWK's data input has two sources, standard inputs and files, and the latter way supports multiple files, such as1. Shell's pathname expansion way: awk ' {...} ' *.txt # *.txt is interpreted by the shell first, replaced by all *.txt in the current directory, such as 1.txt and 2.txt in the current directory, then the command ends with awk ' {...} ' 1.txt 2.txt2. Specify multiple files directly: awk ' {...} ' a.txt b.txt c.txt ...awk processing of multiple files is to re

In the Linux KernelCodeHas such macro definition:# Define dump_write (ADDR, NR) do {memcpy (bufp, ADDR, NR); bufg + = nR;} while (0) This macro definition means that the loop body will be executed once when this macro operation is referenced, but why is it defined as such a strange form? Let's take a look at the macro definitions in several other forms:# Defi

$} ' | Sort | Uniq | Wc-l8, view access to the first 10 IP addressesawk ' {print $} ' |sort|uniq-c|sort-nr |head-10 access_logUniq-c is the equivalent of grouping statistics and putting statistics on the front.Cat Access.log|awk ' {print $} ' |sort|uniq-c|sort-nr|head-10 Cat Access.log|awk ' {counts[$ (11)]+=1}; End {to (URL in counts) print Counts[url], url}9, the maximum number of visits to the 10 files

1. the site root directory to find whether to be placed Webshell Trojan According to the sentence is not PHP Trojan script# find/storage/www/-name "*.php" | Xargs grep-in--color "eval ("# grep-i--include= ' *.php '-R system\s*\ (/storage/www/2. Statistical analysis of the number of occurrences of the same IP in the access log hotlinking, attacks, bots# cat Access.log |awk ' {print $} ' | Sort | Uniq-c |sort-rn3. Analysis of the most frequently occurring IP site-specific data access situation# gr

1#include 2#include 3 4 #defineMax_prio 100005 #defineBits_per_long 326 #defineDiv_round_up (N,d) (((n) + (d)-1)/(d))7 8 #defineBIT (NR) (1UL 9 #defineBit_mask (NR) (1UL Ten #defineBit_word (NR) (NR)/Bits_per_long) One #defineBits_per_byte 8 A - #defineBits_to_longs (NR) di

to initialize the code block, initialize the code before processing each row, mainly referencing global variables, setting the FS separatorMatch code block, can be a string or regular expression{} command code block, containing one or more commands; Multiple commands use semicolons to separateEnd code block, a block of code that is executed after each row is processed, mainly for final calculation or end of output summary information Special points:0 indicates that the entire current line 0 rep

# # # # # # # # # # # # # # # # # #, change the parameters according to negatives Modified according to Apache log formatView Apache ProcessPS aux | grep httpd | Grep-v grep | Wc-lView TCP connections on port 80Netstat-tan | grep "established" | grep ": 80" | Wc-lSniff 80-port access with tcpdump to see who is the tallestTcpdump-i ETH0-TNN DST Port 80-c 1000 | Awk-f "." ' {print $ '. $ "." $ "." $4} ' | Sort | uniq-c | Sort-nrView IP connections for a time periodgrep "2014:0[7-8]" Www20110519.lo

blur effect, mainly dealing with thumbnails, and showingpublic native void Circlebluzshow (surfaces, int x, int y, int radius,float sigma);Destroy all local datapublic native void Destroynativeall ();Key module DescriptionSelection of circular areas, optimized for improved efficiencyThe first step: Draw a square with a radius of 2r around the circle, the square area is 4R2,Step two: Draw a square with a radius of √￣2 in the circle, with an area of 2r2Step three : determine if the pixels in the

execute in the context of the interrupt service . the application of bottom half is also the reason that the excitation kernel develops the current soft interrupt mechanism, so we start with the implementation of the bottom half first.Back to top of pageBottom halfIn the Linux kernel, bottom half is typically denoted by "BH", which was originally used to complete the non-critical time-consuming action of interrupt service in a lower privileged context and is now used for all asynchronous action

sensitivity in regular expressions and string operations. The number of NF file domains. The number of records of the current NR file. OFMT digital output format. OFS output domain separator. ORS output record delimiter. The length of the string matching by the match function. RS input record delimiter. The offset of the string matching by the match function. SUBSEP subscript delimiter. /> Cat employees2Tom Jones: 4424: 5/12/66: 543354Mary Adams: 534

feature default /td> FS = capital F Enter field delimiter space or tab /td> , Enter record delimiter newline /tr> OFS =out FS output field delimiter space or tab ORS output Record separator break line NF common current record non-null field number

timesX{m,}:x at least repeat m timesX{,m}:x up to repeat m timesX{m,n}:x repeats at least m times, but not more than n times[[emailprotected] tmp]# cat awk1rootrrttgood[[emailprotected] tmp]# awk --posix ‘/o{2}/{print $0}‘ awk1rootgood[[emailprotected] tmp]#2、关系表达式: Operation with operator, can be a string or numeric comparison test , [[emailprotected] tmp]# awk ‘NRgt;=2{print $0}‘ awk1rrttgood[[emailprotected] tmp]# 3. Pattern matching Regular expression : with operator ~ (ma

-listviewDrag reorder in ListItem. Developers have given up on maintenance but there are still a lot of followers. FreeflowA layout engine produced by Comcast. Freeflow makes it easy for you to customize layouts and beautiful conversion animations.See Comcast good excitement, because he is the author of the company's largest customer. FadingactionbarFolding style of Actionbar. Speaking of Actionbar, the

)) [Hide Code] # Include # Include Int main (void) { INTN, count; Doublec1, C2, power, numer_dig, denom_dig; C1 = log10 (1.0 + SQRT (2.0 )); C2 = 2.0 * SQRT (2.0)-3.0; Count = 0; For (n = 2; n Power = POW (C2, N ); Numer_dig = 1 + floor (N * C1 + log10 (1 + power)-1.0 * log10 (2.0 )); Denom_dig = 1 + floor (N * C1 + log10 (1-power)-1.5 * log10 (2.0 )); If (numer_dig> denom_dig) Count ++; } Printf ("Count = % d/N", count ); Return 0; } 31 Jan 2008 pm Observ (C/C ++) Using the r

In the driver programming often use the IOCTL system call, found that cmd = 2, the user ioctl directly return-1.The reason is that the DO_VFS_IOCTL function defined in LINUX-X.XX/FS/IOCTL.C1 intDo_vfs_ioctl (structFile *filp, unsignedintFD, unsignedintcmd,2UnsignedLongArg)3 {4 intError =0;5 int__user *ARGP = (int__user *) arg;6 structInode *inode =File_inode (FILP);7 8 Switch(cmd) {9 ......Ten ...... One ...... A CaseFs_ioc_fiemap: - returnIoc