linux basic tutorial

(For other Linux versions, refer) redHatEnterprisrLinuxAS4 graphic Tutorial: Linux basic operations include Linux logon, logout, shutdown, help, viewing files, switching directories, displaying file content, creating directories, deleting directories, and deleting files. Ill

Basic Linux Tutorial: tar command usage The Linux tar command is a powerful tool for archiving or distributing files. The GNU tar archive package can contain multiple files and directories and retain the file permissions. It also supports multiple compression formats. Tar indicates "Tape Archiver". This format is POSIX

Basic Linux Tutorial: build your own Vim IDE 1. Preface After installing the Ubuntu 15.04 system, I feel very good when I have been playing with Ubuntu. Faster than Windows, you can open the program you want on the machine, but in Windows, you can enable the program normally only after it starts required items. Linux a

Linux iptables firewall basic application tutorial, linuxiptables Iptables is a common firewall software in Linux, the following describes how to install and clear iptables rules. iptables only supports the specified port. iptables shields basic applications of iptables, suc

development, has begun to self-study embedded development technology, but because the embedded development is different from the ordinary software development, it is a comprehensive computer software and hardware, a comprehensive subject, involving analog circuits, digital circuits, C language, computer composition principle, microcomputer control technology , network technology, data structure and other courses, many students face embedded so many courses and knowledge points, often do not kno

Basic Linux tutorial-data stream redirectionIntroduction I started to feel a little unfamiliar with the concept of redirection, but I have seen it many times through the previous course.>Or>>And know that they direct the standard output to a file or append it to a file. This is actually a redirection, which redirects the data originally output to the standard out

service iptables SaveTo view firewall rules:sudo iptables-l–n6. Create Oracle User table space under Linuxis to create a new account on the existing DB instance and access some new tablesThe procedure is as follows:(1) Log in to Linux, log in as an Oracle user (if the root user is logged in, switch to Oracle using the su-oracle command after logging in)(2) to open Sqlplus in SYSDBA mode, the command is as follows: Sqlplus "/as sysdba"(3) View our gen

Basic Linux Tutorial: how to modify the host name on CentOS or RHEL 7 Q: What is the correct method for modifying the host name on CentOS/RHEL 7 (either permanently or temporarily )? In CentOS or RHEL, there are three defined host names: a, static (static), B, transient (transient), and c, flexible (pretty ). The "static" host name is also called the kernel host

Basic Linux Tutorial: Package and compress files I. Notes The number of files is too large. Is it difficult to copy the files? What should I do? Pack! If the file is too large, will it take a long time to download and transmit it over the network? What should I do? Compression! In Linux, the extension of the compre

One of my thoughts on reading this book: "Linux basic tutorial" -- Linux general technology-Linux technology and application information. Here is the details. [I = s] This post was last edited by heguhu When I had to learn it, I finally wrote a book to read it. When read

following:export ORACLE_BASE=/home/oracle/appexport ORACLE_HOME=$ORACLE_BASE/oracle/product/11.2.0/dbhome_1export ORACLE_SID=orclexport PATH=$PATH:$HOME/bin:$ORACLE_HOME/binexport LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/libPress ESC when editing is complete and enter ": Wq" to ejectSecond, the installation process1) When the above system requires that the operation is complete, log off the system and log in with the Oracle user on the graphical interface. First copy the downloaded Oracle installa

Basic Linux tutorial-simple text processingIntroduction This section describes the commandstr(Note that it is not tar ),col,join,paste. The actual section is a continuation of the previous section on commands that can perform pipeline operations, so we will still be familiar with the use of these commands in conjunction with pipelines.I. common text processing co

Basic Linux disk partitioning tutorial Introduction Linux disk partitions are divided into physical partitions and logical partitions. physical partitions are directly partitioned on a specified physical disk, which is convenient but weak in expansion; on the contrary, the logic can be combined into a large Logical Dis

you want to save to a different file, you can change it as follows [[emailprotected] ~]# export HISTFILE=~/.historycmd.txt Other configurations # 清除整个命令历史记录中的重复记录[[emailprotected] ~]# export HISTCONTROL=erasedups# 忽略命令历史记录中连续重复的记录[[emailprotected] ~]# export HISTCONTROL=ignoredups# 忽略命令历史记录中以空格开始的记录[[emailprotected] ~]# export HISTCONTROL=ignorespace# 忽略命令历史记录的重复记录和以空格开始的记录[[emailprotected] ~]# export HISTCONTROL=ignorebothThis article is posted on the subscription number, su

　　　Basic Linux Training tutorial usingFind is a very powerful search command for Linux, and with man find, you can find the description of Find in one screen, and it will take some time to read it. Brother even the Linux training to summarize the next, sorting out the use of

Basic Linux Tutorial: uninstall KDE Desktop in CentOS I recently installed a CentOS 6.5 system on my own and found many applications starting with k in the Application menu, which is of little use to me. So I want to uninstall these applications, because so many applications are also disturbing on the computer, and also occupy space, affecting computer performa

, run:iptables-d INPUT 86, iptables boot and rule savingCentOS may exist after installing the iptables, Iptables does not boot from the boot, can run:Chkconfig--level 345 iptables onIncrease it to boot up.Can run on CentOS: Service iptables save rules.It is also more important to note that debian/ubuntu on iptables will not save the rules.You need to follow the steps, such as the following, so that the network card is saved iptables rules. Load Iptables rule at startup:Create a/etc/network/if-po

Basic Linux Tutorial: Install software from source codeWhy install software from source code? Under what circumstances do we need to install software from the source code? I think it is similar to these situations: one case is that the software releases a new version, and the release version is not followed up in a timely manner. At this time, if you want to tast

Basic Linux Tutorial: Use awk to delete data before the specified date in hdfs Business backgroundIt is agreed that the HDFS data five days ago is the expired version data, and an awk script is written to automatically delete the expired version data. $ Hadoop fs-ls/user/pms/workspace/ouyangyewei/dataFound 9 itemsDrwxr-xr-x-pms 0/user/pms/workspace/ouyangyewei/da