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sudo apt-get install openssh-clientsudo apt-get install openssh-serversudo /etc/init.d/ssh stopsudo /etc/init.d/ssh startsudo apt-get install nasm 阅读全文
posted @ 2020-05-12 23:06
xinyueliu
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--Xv6, a simple Unix-like teaching operating system https://pdos.csail.mit.edu/6.828/2012/xv6.html --x86架构操作系统内核的实现 http://wiki.0xffffff.org/ --写一个操作系 阅读全文
posted @ 2020-05-11 10:11
xinyueliu
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#include "stdafx.h" #include <iostream> #include <string> #include <map> #include <list> #include <queue> #include <stack> typedef struct forest { std 阅读全文
posted @ 2020-05-04 18:52
xinyueliu
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--start with ... connect by prior --case1 select * from org o --excute order=>first:start with connect by prior, then where condition where o.flag = ' 阅读全文
posted @ 2020-05-01 02:46
xinyueliu
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A:1.0.0.1~126.255.255.254 (00000001 00000000 00000000 00000001~01111110 11111111 11111111 11111110)mask:255.0.0.0hostnumbers:256^3-2=16777214B:128.1.0 阅读全文
posted @ 2020-04-29 02:01
xinyueliu
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%s/{/\r{\r/g%s/}/\r}\r/g%s/;\([^\r]\+\)/;\r\1/ggg=G ggvG= 阅读全文
posted @ 2020-04-28 14:53
xinyueliu
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set hlsearchset nohlsearch .* => non-greedy: .\{-} .+=> non-greedy: .\{-1,} 阅读全文
posted @ 2020-04-28 12:18
xinyueliu
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sed -i 's/111/222/g' input.txtawk 'NR == 2' input.txt #output line2sed -n 2p input.txt #output line2tail -n2 input.txt #only output the last two lines 阅读全文
posted @ 2020-04-28 11:23
xinyueliu
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grep -o 1111 input.txtvim:%s/1111/&/gn:m,ns/字符串/&/gn sed -n '/111/p' input.txtcut -d' ' -f1 input.txt|sort -rn|uniq -c |sort -rn awk -v RS="@#$j" '{pr 阅读全文
posted @ 2020-04-28 11:20
xinyueliu
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#include "stdafx.h" #include <iostream> #include <cstdlib> static int _sumFibSeq(const int n, int pArrayFib[]) { if (0 != pArrayFib[n - 1]){ return pA 阅读全文
posted @ 2020-04-27 23:31
xinyueliu
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