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Easy way to learn Linux OS kernel source codeFor a lot of Linux enthusiasts are interested in the kernel is not easy to swallow, the purpose of this article is to introduce a way to interpret the Linux kernel source code, rather than explain the Linux complex kernel mechanism;A The file organization of the core source program:1. Linux core source programs are usu

Recently in with the previous classmates to learn python, progress together, found that many test students in the beginning of Python is easy to make some mistakes, deliberately summed up a bit. In fact, these errors are not only encountered when learning Python, but also when studying other languages.Error 1: IndentationPython is a forced indentation of the language, many students in the first contact with

To give you Photoshop software users to detailed analysis to share a simple and easy to learn the circle icon of the production tutorial. Tutorial Sharing: Well, the above information is small compiled to you photoshop this software users brought the detailed simple and easy to learn the circle icon of th

To teach you to use PS to create a two-color typesetting effect, novice tutorials, simple and easy to learn, like the students can learn! Effect Chart: 1.ctrl+n new Baidu signed the maximum width and height limit 500*200 don't say much 2. The new finished press "D" to restore PS default foreground color background colors, develop good habits. -

] ~]# last-n 5| awk ' {print $ \ t lines: ' NR ' \ t columes: ' NF} ' root lines:1 columes:10root lines:2 columes:10 root lines:3 colume S:10 dmtsai lines:4 columes:10 root lines:5 columes:9 # Note that the NR, NF and other variables in awk are capitalized and do not need to be $!the logical operator of awk (for conditional judgment) —————————— Superman Einstein updated on November 01, 2014 OK, today's content is probably the case, if there is something wrong, ask the big God, we see in the ne

own independent resources, each process has its own private address space), dynamic (different from the static instructions of the program, dynamic State), concurrency (concurrent execution, non-impact).Threads are part of the process. A thread has its own stack, program counter, and its own local variables, but it does not hold system resources. A process often contains multiple threads, which share all the resources of the parent process.Memory is not shared between processes, and it is

Oracle Oracle Basics Easy to learn: 1. A tablespace can only belong to one database. 2. Each database has at least one control file (recommendation 3, placed on separate disks). 3. Each database has at least one table space (System tablespace). 4. The purpose of establishing the system table space is to keep tables of the same purpose as possible so as to improve the efficiency of the use of the data di

/school.sqlAdding--databases based on the original command does not require pre-creation of the specified database when recovering 2. Data recoverymysql-uroot-p123123 OrSource/root/abc/school.sqlBoth methods are available, eliminating the need to pre-create the database. 备份表The Backup table method is similar to the above Mysqldump-u Root-p School Info >/root/abc/info.sql To restore, you only need to specify the name of the library M