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cut的使用方法
　　名称：cut 　　使用权限：所有使用者 　　用法：cut -cnum1 -num2 filename 　　说明：显示每行从开头算起 num1 到 num2 的文字。 　　范例： 　　shell>> cat example 　　test2 　　this is test1 　　shell>> cut -c0 -6 example ## print 开头算起前 6 个字节 　　test2 　　this i

E:temp>npipe
Usage: npipe [OPTIONS] [INPUT] [OUTPUTS] [FILE FLAGS] [CONVERSIONS]
Input parameters can appear in any order, file flags affect only the next
file/flag/handle/section/object specified on the command line
-t, --tee
        Copy INPUT to STDOUT
-s, --stderrtee
        Copy INPUT to STDERR
-n handle-num, --handle handle-num
        Copy INPUT to handle: handle-num
-e error-file, --error-file error-file
        Send errors to file: error-file
-a append-file, --append-file append-file
        Append INPUT to file: append-file
-i input-file, --input-file input-file
        Read INPUT from file: input-file
-N handle-num, --input-handle handle-num
        Read INPUT from handle: handle-num
-D ntapi-file, --device-input ntapi-file
        Read INPUT from native api/kernel file: ntapi-file
-d ntapi-file, --device-output ntapi-file
        Copy INPUT to native api/kernel file: ntapi-file
-V, -VV, -VVV, -VVVV
        Increasing verbosity, by default only parameter error info
-b buffer-length, --buffer-length buffer-length
        Set the IO buffer size (default is 64k, unless console handle IO
        is taking place, in which case it is 256)
-w, --wait
        Wait for all pipes to be connected to before starting transfer
-B, --block-read
        Read an entire buffer before writing
        Likely only affects pipes or other communication handles
-m max-bytes, --maximum max-bytes
        Read a maximum of max-bytes from INPUT
-c conversion-function, --convert conversion-function
        Converts the buffer using one of the following functions:
        All output commands after this point will be processed after the
        conversion, those before will be unaffected.
        l       ANSI To Lower Case
        L       Unicode To Lower Case
        u       ANSI To Upper Case
        U       Unicode To Upper Case
        c       Clean non-ASCII to space
        c:l     Clean non-ASCII to letter l
        cnum    Clean non-ASCII to ASCII char num
        c-      Delete non-ASCII
        O       ANSI to OEM
        A       OEM to ANSI
        w       ANSI to Unicode
        W       ANSI to Unicode, with BOM
        a       Unicode to ANSI
        s[num]  Swap order of every num bytes, default 2, where num is a power
                of two
        hb[+][-]Binary to Hex by byte [with text dump] [without address dump]
        hw[+][-]Binary to Hex by word [with text dump] [without address dump]
        hd[+][-]Binary to Hex by dword [with text dump] [without address dump]
        hr[+]   Binary to Hex by byte raw dump [with spaces]
-h, -?, --help
        Display this help
-v, --version
        Display version info
--credits
        Display program credits
-P, --progress
        Displays a progress bar on the active console screen buffer (not STDOUT
        or STDERR)
-R, --report
        Print a status report to the error handle (default STDERR, set with -e)
        This is overriden by the progress-bar flag (-P).
-O [queue length], --overlapped [queue length]
        Reads from the input file (not file mapping) using asynchronous
        overlapped IO.
        This will probably improve the overall read/process speed
        This is incompatible with the block-read flag (-B), and file mapping
        inputs (-F)
        'Queue length' defaults to 16, and must be between 1 and 64.
-Q, --overlapped-output
        Outputs to the last output handle in the chain using asynchronous
        overlapped IO.
        This is incompatible with file mapping outputs
        This activates overlapped read IO (-O above)
-X, --always-read
        Read input even if no output specified

Flags which affect the next file on the command line
  -W, --file-share-write
        Open with FILE_SHARE_WRITE
  -F, --file-mapping
        Treat as a named file mapping object (cannot be a pipe)
        For best performance: ensure that the buffer size and the skip offset
        are a multiple of the page size, usually 4k.
  -p, --persistent
        Continue writing to next handle, even if write errors occur
        Read unmapable/unreadable sections as blank
  -S skip-bytes, --skip skip-bytes
        Skip the first skip-bytes bytes of the file, (not pipe)
Flags which affect the next file on the command line (pipe only)
  -z    Force connection to existing pipes rather than create a new pipe
  -Z    Force creation of new pipes rather than connection to existing pipe

Pipe names must be in the format: .pipe[[path]name]
INPUT defaults to STDIN
/ may be used instead of -
Number may be prefixed with 0x for hexadecimal, and postfixed with the following
 SI prefixes: k,M,G,T,P,E
These stand for increasing powers of 2^10 (1024) and can be used to specify kilo
bytes, megabytes, etc.
One letter arguments may be clumped, however only the last argument in the clump
 may have an argument.
eg. -V -V -t -s -b64k <--> -VVtsb64k

Example: npipe -tsVVVVwm64k -FpD DevicePhysicalMemory out -chr -a outputfile -
Z .pipepipe1
Outputs to STDOUT,STDERR. Very verbosely. Waits for all pipes. Read max 64kB (65
536 bytes). Opens DevicePhysicalMemory as a ntapi file mapping object and pers
istently reads from it. Outputs to file: 'out'. Converts output to a raw hexdump
, affects following two output commands. Appends to file: 'outputfile'. Always c
reates, and outputs on pipe: 'pipe1'.

E:temp>npipe -c hr+ -i writer.exe outputs

Google Reader (100+)

更新22：在FTP服务器上搜索

　　TC的搜索功能超强，但对FTP的搜索则弱很多，未能做到FTP和本地内容一视同仁。TC7中此项改进，为经常用FTP功能的用户提供了极大方便。

转载自[smth]

如果客户随便给点钱，他们把自己的产品称作财务系统
如果钱给得多些，就改名叫OA或者MIS
如果钱给得非常多，就改名叫ERP

其实都是一个东西。

他们的理由很简单，客户反正不懂，能忽悠就忽悠。。

[(XYS20070606)]一个充分尊重患者知情权的中医师，不仅要告诉患者自己诊断不了癌
症，也治不了癌症，而且应该要求患者必须拿着现代医学的检验单来看病，否则
就拒绝治疗；如果是确知得了癌症的患者来要求治病，也应拒绝，而不能因为患 者坚决要求采用中医方法治疗就以为自己没有责任、可以放心开药了。教师何尝不应如此？

根据队员要求，[ACM ICPC的魔鬼训练方案]修改如下：
任务模式中，原版本教学模式为每次不过关切手指一个，现改为切手指一节，以延长队员的编程生命和痛苦。

作为教练率队参加ACM ICPC东北地区赛。
两个队都获得了二等奖。
同时，参加吉林省高教厅赛的三个队，两个二等奖，一个三等奖。
我为你们骄傲。

注意，以下内容需要较强心理承受能力，可能导致某些人不舒服。
0.教学关
　　要求在规定时间内，如5分钟内完成事先告知的题目，包括读题时间。
　　题目包括语法、常用函数、一般算法、一般数据结构、动态规划、贪心等。
　　不提供任何参考资料。题目为英文。
　　不能在规定时间内完成的不能进入正式关－－这是为了队员着想，向下看你就明白了。

1.任务模式
　　要求队员在　规定时间内　完成　一定数量的　指定题目。到规定时间，凡未完成题目的，切手指一个。
　　直至过关为止。
　　手指数少于1的队员将光荣退役－－这是为了队员着想，向下看你就明白了。

2.PK模式
　　要求队员两人一组结对。同组内的两人分别完成题目。两台计算机上都连接有枪枝指向对方，先完成全部题目者的枪枝击毙对方。
　　后完成，不，未完成题目的另一队员自动退役。

3.死斗模式
　　要求队员十余人一组。同组内的所有计算机共同接有机枪。先完成题目的激活机枪，"突突突突突突...."。
　　除唯一胜利者外，其余队员自动退役。

我自己也觉得恐怖。

勇揭品牌机的内幕：所谓高保真音箱的猫腻 台式机-计世网

通常情况下，电脑有源音箱采用的2分频方式，即音频信号的高频成分和低频成分，分别由高音扬声器和低频扬声器来表现。这是由扬声器的分工决定的，高频扬声器适合重放较高频率的声音成分，而低频扬声器则适合于重放低频率的声音成分。低档的有源音箱中，往往只采用一个分频电容来进行分频，由于分频电容具有"阻低通高"的特性，因此高音扬声器往往串联着一个分频电容，造成低音与高音混在一起，效果令人难以接受。