comcast nr

' {print $} '}function reading () {#用于提取status中的reading数值/usr/bin/curl/http $ip/nginx_status 2>/dev/nul l | Sed-n ' 4p ' | awk ' {print $} '}function writing () {#用于提取status中的writing数值/usr/bin/curl/http $ip/nginx_status 2>/dev/nul l | Sed-n ' 4p ' | awk ' {print $4} '}function WAiting () {#用于提取status中的waiting数值/usr/bin/curl/http $ip/nginx_status 2>/dev/null | sed-n ' 4p ' | awk ' {PRINT $6} '}$1 #通过第一个位置参数的值来调用相应的函数4.2 PHP-FPM Status Value extraction scriptThe PHP-FPM status Value extraction

the array of keys and values, in the middle with a \ t tab split, beautify a bit.Viewing HTTP connections for SYN statusNetstat-n | awk '/^tcp/{++state[$NF]} END {for (key in) print key, "T", State[key]} 'View HTTP connections for TIME_WAIT statusNetstat-tna | Cut-b 49-|grep time_wait | Sort |moregrep time_wait | awk ' {print $5} ' | Awk-f: ' {print $1sortsort -nr | moreView HTTP connections for established statusNetstat-an | grep established | awk '

"; var2 = "V2"; var3= "V3"; \Print Var1 "-" var2 "-" VAR3; }'$>v1-v2-v3Special variables: NR NF $ $ NR: Indicates the number of records, in the course of the implementation of the should forward number;NF: Represents the number of fields, and the total number of fields that should go in the execution process;$: This variable contains the textual content of the current line during execution;$: The textual c

MAXAIO causes Oracle to start the hang problem Oracle database, 10.2.0.4 for linux x86. When it restarts normally, it freezes to the open stage. On the operating system, the CPU usage of some user processes started due to scheduled tasks is almost 100%, which is obviously waiting. The trc file is also quickly generated in the bdump directory of Oracle. The key points of these files are as follows: WARNING: io_submit failed due to kernel limitations MAXAIO for process = 0 pending aio = 0 WARNING:

identifier of the print file. '\ n' is used by default as the delimiter of the file;-Print adds a carriage return line break after each output, but-print0 does not. Use '\ 0' as the file's separator to search for files containing spaces;Files in the current directory are sorted in ascending order (including hidden files) and the file name is not ".": find . -maxdepth 1 ! -name "." -print0 | xargs -0 du -b | sort -nr | head -10 | nl Grep text searchGr

# #g ' | | tr-d ' \n\r ' #get displaycarddisplay= ' grep "Displaycard" $HSVDIR/$file | Awk-f ' = ' ' {print$2} ' |tr-d ' \n\r ' #get motherboardmf= ' grep ' Manufacturer ' $HSVDIR/$file |awk-f ' = ' ' {print$2} ' |tr-d ' \n\r ' mb= ' grep ' motherboard model " $HSVDIR/$file |awk-f ' = ' ' {print$2} ' |tr-d ' \n\r "#get hardinformationstarthd= ' grep-n" Harddisk: " $HSVDIR/$file |awk -F ': ' ' {print$1} ' endhd= ' grep-n ' networkcard: ' $HSVDIR/$file |awk-f ': ' ' {print$1} ' #hdinfo = '

, it disrupts the standard LRU algorithm. Imagine, on a multi-processor system, there are a total of 4 CPUs. Exactly four CPUs are executing try_to_free_pages. If the first 1st CPUs have just scanned the LRU linked list, the page of the linked list is aging by a unit, then the second CPU is executed again, and the Unit is aging again ,... in a short period of time, many active pages frequently experience aging But they are indeed active, so they eventually replace a large number of pages, result

;atomic_set (t->count, 0);}The OPEN_SOFTIRQ function is as follows:void Open_softirq (int nr, void (*action) (struct softirq_action*), void *data) {unsigned long flags;int i;spin_lock_ Irqsave (softirq_mask_lock, flags); softirq_vec[nr].data = Data;softirq_vec[nr].action = Action;for (i=0; istruct Softirq_action{void (*action) (struct softirq_action *); void*data

file in the title are filtered by command to output only the following: (no less than two 2 methods)10.0.0.8 10.0.0.255 255.255.255.0Method One:Command:The chief of the Three Musketeers is good at fetching columns-F specified delimiter $ is the first column to fetch a file row nr==2 rows[[email protected] hao]# cat Hao.txt |awk-f "[:]" ' {print $ "" $ $ "" $7} '10.0.0.8 10.0.0.255 255.255.255.0Method Two:Command:SED regular matches all uppercase and

1. See how many IP accesses are available on the day:awk ' {print '} ' log_file|sort|uniq|wc–l2. View the number of times a page has been accessed:grep "/index.php" Log_file | Wc–l3. See how many pages each IP visited:awk ' {++s[$1]} END {for (a in S) print A,s[a]} ' log_file4, the number of pages per IP access from small to large sort:awk ' {++s[$1]} END {for (a in S) print S[a],a} ' log_file | Sort–n5. See which pages a certain IP has accessed:grep ^111.111.111.111 log_file| awk ' {print $1,$7

Linux Related Questions AnswerLinux Face Test Answer hypothesis apache The log format is: Span style= "Font-family:tahoma" > 118.78.199.98–-[09/jan/2010:00:59:59 +0800] "get/public/css/ Index.css http/1.1″304– "http://www.a.cn/common/index.php" "mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; GTB6.3) " problem 1 : in apachelog 10 ip awk ' {print '} ' Apache_log |sort |uniq-c| Sort-nr|head-n awk First, the in

atomic_inc_and_test (atomic_t *v); int atomic_dec_and_test (atomic_t *v); int atomic_sub_and_test (int i, atomic_t *v);6. Operation and returnint Atomic_add_return (int i, atomic_t *v), int atomic_sub_return (int i, atomic_t *v), int atomic_inc_return (atomic_t * v); int Atomic_dec_return (atomic_t * v);Implement bit atomic operations as follows:Set the bit void Set_bit (nr, void *addr); Set the addr address of the

decrement of atomic variables (no addition) Tests whether it is 0, 0 returns True, otherwise returns Falseintatomic_inc_and_test (ATOMIC_TNBSP;*V); Intatomic_dec_and_test (atomic_ TNBSP;*V); Intatomic_sub_and_test (INTNBSP;I,NBSP;ATOMIC_TNBSP;*V);// operation and return: to the atomic variable to add/ Subtract and increment/decrement operations, and return a new value Intatomic_add_return (INTNBSP;I,NBSP;ATOMIC_TNBSP;*V); Intatomic_sub_return (int NBSP;I,NBSP;ATOMIC_TNBSP;*V); Intatomic_inc_ret

atomic variables (no addition) Tests whether it is 0, 0 returns True, otherwise returns Falseintatomic_inc_and_test (ATOMIC_TNBSP;*V); Intatomic_dec_and_test (atomic_ TNBSP;*V); Intatomic_sub_and_test (INTNBSP;I,NBSP;ATOMIC_TNBSP;*V);// operation and return: to the atomic variable to add/ Subtract and increment/decrement operations, and return a new value Intatomic_add_return (INTNBSP;I,NBSP;ATOMIC_TNBSP;*V); Intatomic_sub_return (int NBSP;I,NBSP;ATOMIC_TNBSP;*V); Intatomic_inc_return (atomic_t

Suppose the Apache log format is:118.78.199.98–-[09/jan/2010:00:59:59 +0800] "Get/public/css/index.css http/1.1″304–" http://www.a.cn/common/ index.php "" mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; GTB6.3) "Issue 1: Find the 10 most visited IPs in Apachelog.awk ' {print '} ' apache_log |sort |uniq-c|sort-nr|head-n 10awk first grabs the IP in each log, such as the log format has been customized, you can define the delimiter and the print s

printed; Echo-e "Line1nline2" | awk ' Begin{print ' "start"} {print} end{print "END"} ' When print is separated by commas, the parameters are bounded by spaces;echo | awk ' {var1 = ' v1 '; var2 = "V2"; var3= "V3"; print var1, var2, var3;} ' $>V1 V2 v3 Use the-stitching method ("" as the stitching character);echo | awk ' {var1 = ' v1 '; var2 = "V2"; var3= "V3"; print var1 "-" var2 "-" VAR3;} ' $>v1-v2-v3 Special variable: NR NF $ $ $

Suppose the Apache log format is:118.78.199.98–-[09/jan/2010:00:59:59 +0800] "Get/public/css/index.css http/1.1″304–" http://www.a.cn/common/ index.php "" mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; GTB6.3) "Issue 1: Find the 10 most visited IPs in Apachelog.awk ' {print '} ' apache_log |sort |uniq-c|sort-nr|head-n 10awk first grabs the IP in each log, such as the log format has been customized, you can define the delimiter and the print s

. Read a line from the file or stdin, and then execute the STATEMENTS2, repeating the process until the file is fully read;3. Execute the end statement block; Print printing when moving forward When you use print without parameters, the current line is printed; Echo-e "Line1\nline2" | awk ' Begin{print ' "start"} {print} end{print "END"} ' When print is separated by commas, the parameters are bounded by spaces; echo | awk ' {var1 = ' v1 '; var2 = "V2"; var3= "V3"

, use ' ' as the delimiter of the file, so that you can search for files containing spaces;In the current directory, the files are sorted from large to small (including hidden files), and the file name is not "." ：Find. -maxdepth 1! -name "."-print0 | xargs-0 Du-b | Sort-nr | head-10 | nlgrep Text Searchgrep match_patten File//default access matching lineCommon parameters-O outputs only matched lines of text vs-v output no matching lines of textThe nu

With the website running, we can get some actual information about the website through the free Log analysis tool such as awstats, such as the daily IP amount, PV amount, the browser used by the user, the operating system used by the user, etc., but sometimes want to get some information from the Web log file by hand. , here are some of the commands I used most recentlyGet access to the top 10-bit IP addressCat Access.log|gawk ' {print $} ' |sort|uniq-c|sort-