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permissions of the file are set. Of course, these two attributes are not required for devices. Pass 0 After the device is created, it will communicate with the device. To communicate with the device (that is, to communicate with the driver), use deviceiocontrol to call this parameter in minicd.exe. Wchar outbuffer [501] = l "MF: // developetool // sql2000sp4. ISO ";DWORD buffersize = 0x3ea; Deviceiocontrol (Device,0x22008,Null,0,Outbuffer,Sizeof (out

-mtime-2 check files modified in the last two days under/homeFind/home-atime-1. Check the files that have been accessed within one day.Find/home-mmin + 60 check files modified 60 minutes ago under/homeFind/home-Amin + 30 check files that have been accessed in the last 30 minutesFind/home-newer tmp.txt check for files or directories that are earlier than tmp.txt in/home.Find/home-anewer tmp.txt check the files or directories with a time closer to tmp.txt under/home.Find/home-used-2 list the files

/mysql_virtual_alias_maps.cfVirtual_mailbox_base =/home/mail# How to retrieve virtual domains using the specified PostfixVirtual_mailbox_domains = MYSQL:/etc/Postfix/mysql_virtual_domains_maps.cf Virtual_mailbox_limit = 102400000# How to retrieve the mailbox with the specified Postfix. MySQL is used here.Virtual_mailbox_maps = MYSQL:/etc/Postfix/mysql_virtual_mailbox_maps.cfVirtual_minimum_uid = 501# Email account uid, that is, the Postfix group ID (t

files to the regular Oracle software owner(2) Detailed description of relevant documentsThe LS command and many parameters provide some useful file information.Another unfamiliar command, stat, provides more useful information. [oracle@Think ~]$ cd $ORACLE_HOME/bin[oracle@Think bin]$ stat oracle File: `oracle' Size: 93362427 Blocks: 182552 IO Block: 4096 regular fileDevice: 802h/2050d Inode: 1557452 Links: 1Access: (6751/-rwsr-s--x) Uid: (

There are three matrices A, B, C. Ask a * B if it is C. (n ^ 3) the algorithm will time out. Construct an N * 1 Matrix A * B = C A * B * x = C * x A * (B * X) = C * x Then it can be determined once in (N ^ 2) time.View code 1 program pku3318(input,output); 2 var 3 x,y,z : array[0..501,0..501] of int64; 4 left,right,answer1 : array[0..501] of int64; 5 n : longint; 6 rand

Http://poj.org/problem? Id = 2912 Enumerate + relationships and check the set. The set is similar to 1182. When every child is judge, if the current enumeration is correct, the current enumeration number may be judge. If only one judge is found, find the maximum number of round required to exclude other numbers. The two are output. After a whole day, WA performed nine times. The reason is that the offset R formula is incorrect and the table is listed many times. Code:# Include # Include Using na

shell limits (system resource limit) to improve the running efficiency of the software. A. Add the following red lines to the/etc/security/limits. conf file: Oracle soft nofile 65536 Oracle hard nofile 65536 Oracle soft nproc 16384 Hard nproc 16384 B. Add the following lines to the/etc/PAM. d/login file, if not: Session required/lib/security/pam_limits.so Session required pam_limits.so C. Add the following statement after/etc/profile: VI/etc/profile

has been revoked HTTP 403.15-Access prohibited: too many access permits from customers HTTP 403.16-Access prohibited: the client certificate is untrusted or invalid HTTP 403.17-Access prohibited: the client certificate has expired or has not yet taken effect HTTP 404.1- The web site cannot be found. HTTP 404-file not found HTTP 405-the resource is forbidden HTTP 406-unacceptable HTTP 407-proxy authentication required HTTP 410-never available HTTP 412-precondition failed HTT

acceptableUnacceptable 407 Proxy authentication requiredProxy verification required 408 Request timeoutRequest timeout 409 ConflictConflict 410 GoneNo longer available 411 Length requiredLength required 412 Precondition failedPrerequisite failed 413 Request Entity too largeThe Request Entity is too large. 414 Request URI Too long URIThe request URI is too long.

Useradd example: After talking about this for a long time, we also started to use the useradd command to create several accounts to improve our hands-on capabilities. In addition, let's make a demonstration. After all, we have a good idea. Oh, but I forgot what a great man said. Well.# Create a new user chongpig by default without adding any parameters [Simaopig @ xiaoxiaozi ~] $ Useradd chongpig Bash:/usr/sbin/useradd: insufficient Permissions [Simaopig @ xiaoxiaozi ~] $ Su Password: [

control and select Properties. A dialog box is displayed, this dialog box has a style option. This parameter corresponds to this style. Now that we understand the above, let's create a button dynamically. First, add a member variable cbutton m_button in the corresponding class; In the dialog box editing area, add a button control to the dialog box (click this button to create a button control), add this button control, click the message processing function, and add the following statement to th

(create a Grid Management Group)#/Usr/sbin/useradd-g oinstall-G dba, asmdba oracle-d/home/oracle (oinstall is the main group to ensure that/home/oracle does not exist)# Id oracle (remember the uid and gid of the oracle user)Uid = 501 (oracle) gid = 501 (oinstall) groups = 501 (oinstall), 502 (dba), 504 (asmdba)# Passwd oracle 4. Adjust OS Kernel ParametersSettin

42424 4096 Oct 23 2005 database-Rw-r -- 1 root 801603584 Oct 14 2009 10201_database_linux_x86_64.cpio2. Create a software installation environment2.1 create an Oracle account and directory:Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/--> [root @ Fantasy ~] # Groupadd oinstall[Root @ Fantasy ~] # Groupadd dba[Root @ Fantasy ~] # Useradd-g oinstall-G dba oracle[Root @ Fantasy ~] # Passwd oracleChanging password for user oracle.New UNIX password:B

changes the data in the third column of/etc/shadow. -U unlock Uerdel deletes user-related data Account Password:/etc/passwd,/etc/shadow User group:/etc/group,/etc/gshadow User personal file data:/home/username,/var/spool/mail/username Userdel-r username -R is also deleted along with the user's main folder. User features: Id Uid = 501 (lixue) gid = 501 (lixue) group =

Install MySQL database using a Binary Package 1.1 install MySQL database in Binary Package 1.1.1 preparations before installation (specifications) [Root @ Mysql_server ~] # Mkdir-p/home/zhurui/tools # create a specified toolkit storage path[Root @ Mysql_server ~] # Wget http://ftp.ntu.edu.tw/pub/MySQL/Downloads/MySQL-5.5/mysql-5.5.32-linux2.6-x86_64.tar.gz # download Binary Package[Root @ Mysql_server tools] # tar xf mysql-5.5.32-linux2.6-x86_64.tar.gz # unzip the Mysql package[Root @ Mysql_serv

, -- password PASSWORD to encrypt the new account password-r, -- system to create a system account-R, -- root CHROOT_DIR chroot to the directory-s, -- shell SHELL New Account Login shell-u, -- uid UID new account user ID-U, -- user-group creates a group-Z with the same name as the user, -- selinux-user SEUSER is SELinux user ing using the specified SEUSER Create a new user named "/home/test5" with UID = 501, GID =, and validity period of 30 days. Comm

Free-m memory information query, cat/proc/cpuinfo cpu Information Query instance explanation, proccpuinfo Free cpu Information Query reference informationFree [root@VM_0_16_centos ~]# free -m total used free shared buffers cachedMem: 996 824 172 10 32 501-/+ buffers/cache: 289 706 Swap: 0 0 0 [root@VM_0_16_centos ~]# Formula: T

the login shell for the new user account-u, --uid UID force use the UID for the new user account-Z, --selinux-user SEUSER use a specific SEUSER for the SELinux user mapping[root@localhost ~]# useradd -DGROUP=100HOME=/homeINACTIVE=-1EXPIRE=SHELL=/bin/bashSKEL=/etc/skelCREATE_MAIL_SPOOL=yes[root@localhost ~]# useradd test[root@localhost ~]# id testuid=500(test) gid=501(test) groups=5