Linux

Linux installation Cx_oraclesEnvironmental backgroundSystem: CentOS6.8Python:python 2.7.13 | Anaconda 4.3.1 (64-bit)Cx_oracle module: 5.0.4Oracle:11.2.0.1.0Oracle Client: 11.2.0.1.01. DownloadHttp://www.oracle.com/technetwork/topics/linuxx86-64soft-0

Group Information file:1. File Address:/etc/group-rw-r--r--. 1 root root 492 October 6 21:56/etc/group2. Contents of the file:XIAOL:X:500:3. Information meaning:1th field: Group name2nd field: Group password flag3rd field: GID4th field: Additional

1. View the number of device cardsLspci|grep Ethernet See the number of PCI slots NICs2. NIC configuration file/etc/sysconfig/network-scripts/ifcfg-interface-name (Interface-name Depending on the type of network card, sorting is generally eth0

linux--Find and replaceText lookup:grep, Egrep, Fgrepgrep: Searches a document based on a pattern defined by a basic regular expression and displays a line of text that conforms to the patternNote: Search is part of the search, as long as a line has

1, installation yum-y install NSCD2. configuration file:/etc/nscd.conf3. cache files: Cache db files under/VAR/DB/NSCD. Statistics information can be viewed through nscd-g4, Clear cache: Nscd-i passwd/group/hosts; Service NSCD Restart5, NSCD can

When using RM to delete a large batch of files, it is possible to encounter the problem of "parameter column too Long" (Argument list too long). As shown below[Email protected] bdump]$ rm-v epps_q001_*-bash:/bin/rm:argument list too longSee how many

The Vmstat command is the most common Linux/unix monitoring tool that can show the status of a server at a given time interval, including server CPU utilization, memory usage, virtual memory exchange, IO Read and write situations. This command is I

Linux backgroundLinux is the full name of Linux is not UNIX. This name to see its simple, in fact, very connotation, the whole sentence of the first letter together is also L-n u*x, similar to the recursive structure, it is a programmer's

Today, I bought a 1T mechanical disk used as a database, and the computer can recognize it properly by loading a new hard disk.The hard drive is mounted in the order in which they are mounted, formatted with partitions, and so

1 Background execution2. Viewing the execution of the current command in the same session environmentExit the console, re-putty up to see the current implementation (PS can see, jobs can not see)If you want to kill the background shell process.Find

One, more commandsMore features like cat, the Cat command is the contents of the file are completely displayed on the screen from top to bottom. More will be a page-by-page display to facilitate users to read pages, and the most basic instruction is

The Action tar command is a reliable way to back up files in a unix/linux system. It is almost possible to work in any environment, and its use rights are for all users.Grammar:tar [main option + Secondary options] File or folderMain options:C

Filter the open message for a port numberNETSTAT-ANPL | grep 9010Filter information for a service process that is open by a queryPs-ef | grep nodeTo force a kill off a processKillall-9 Service Process NameKILL-9 Process PID NumberView the number of

First, install the Linux system with the virtual machine and find the terminal in the application (it is important that the Linux system performs the task as a command, and all the commands are entered and executed in the terminal), and then enter

Add Users:Useradd Xiaol-U manually specify the UID number of the user-D Manually Specify home directory-C Manually specify the user's description information-G manually specifying user initial groups-G Modify User Attach GroupAttention:Assigning

Linux installation can be divided into 4 points, but also some 2 (/, swap area), turn a linux20g is enough1/boot Disk Format Ext4We can divide the boot area first because the boot space requirement is very small, for storing the system boot file

in a single thread program. We often use "global variables" to implement shared data among multiple functions, but in a multithreaded environment. Because the data space is shared. Therefore, global variables are also shared by all threads. But

When the system has multiple sets of JDK, it is inconvenient for the system to be equipped with unified java_home, we may want to specify the JDK path for Tomcat.1.Linux Tomcat Specifies the JDK pathLocate $cataline_home/bin/catalina.sh and

Supervisor installation configuration, supervisorSupervisor Introduction Supervisor allows its users to control multiple processes on UNIX operating systems. The block is as follows: Convenient You need to writeRc. dScripts are usually

Xshell uploads files locally to Ubuntu and downloads files locally from Ubuntu, 1. The first method is the most commonly used: If Xshell and Xftp are downloaded, Ctrl + Alt + F will be able to select the mutual file transfer! (Virtual