Linux

Chown changes the owner of the specified file to the specified user or group, the user can be a user name or a user ID, the group can be a group name or a group ID, and the file is a space-separated list of files to change permissions, and wildcard

Head and tail are as straightforward as its name, which is used to show a certain number of blocks of text at the beginning or end, which is used to show the beginning of the file to the standard output, while tail assumes the end of the file. 1.

Mark a moment. [Root@lvsmaster ~]# LL Total Dosage 44 Drwxr-xr-x. 3 root 4096 May 29 07:26 " -RW-------. 1 root root 1372 May 07:37 anaconda-ks.cfg -rw-r--r--. 1 root root 18796 May 07:37 Install.log -rw-r--r--. 1 root root 4877 May 07:35

int __pthread_create_2_1 (pthread_t *thread, const pthread_attr_t *attr, void * (*start_routine) (void *), void *arg)/ /thread for pthread_t, actually is pthread pointer. typedef struct PTHREAD *pthread_t; ->unsigned long int//attr additional

1 mount Operation 1 disk or partition need to create a good file system, you need to mount a directory to be able to use 2 windows or Mac automatically mounts the file system and automatically mounts it once the file system is created. 3 for

Content Summary: Copy the resin-version/contrib/init.resin.in to the/etc/rc.d/init.d/resin. Modify some of the settings in RESIN: Java_home resin_home USER. Use/sbin/chkconfig resin on to set the resin service to start at startup level 345. When

Last said the Zabbix server installation, today on Linux installed the client, the process is as follows: (1) Download Zabbix client software http://www.zabbix.com/download.php Choose a different version of the Zabbix, depending on the client

Windows and Linux/unix have different ways of handling file system character sets. The Windows file system driver layer itself has the character set conversion, processing module, no matter what character set from the operating system, the final to

In general, the two network interfaces of a firewall should belong to two different networks, forwarding packets between two interfaces based on the access rules defined by the system administrator, or rejecting and discarding packets. In fact, the

FWTK is a set of tools used to build and maintain internal network firewalls. It contains a number of standalone components, most of which are proxy applications such as Telnet, FTP, Rlogin, SendMail, HTTP, X windows, and so on. Compared with squid,

1. Create a test script: [Oracle@ocm1 ~]$ VI touchfile.sh #!/bin/bash For ABC in {1..9} Todo touch/boot/test/$ABC Done "Touchfile.sh" 5L, 66C written 2. Create test directories, test scripts [Root@ocm1 oracle]# Cd/boot [ROOT@OCM1 boot]#

Working in the Linux system Red Hat Enterprise5.7 mount Seagate NTFS format mobile hard drive, will jump out an error prompt box: The volume ' EAGET-NQH ' user the NTFS file system which is n OT supported by your system. Where ' Eaget-nqh ' is the

One, what is the file lock To lock the word, we must not unfamiliar, because we live in a large number of locks, they play its part in every way, and now the world's lock function can be summed up in a sentence, is to prevent some people to do

Domain name IP addresses are often difficult to remember, so we generally use domain names for management www.google.com The domain name is divided into three parts, with "." (point) segmentation. Strict domain name finally there is a ".", but

There's no need to remember everything. Linux provides extremely detailed help tools and documentation, and must develop the habit of helping documents, greatly reducing what needs to be remembered and improving efficiency. Help Almost all

Bash Shell uses a feature called environment variables to store information about shell sessions and the work environment.Global environment variablesThis is visible to both the shell session and all the spawned child shells. Local variables are

#topOutput:C: Toggle display command name and full command line. Displays the complete command. This feature is useful.M: Sorts based on the size of the resident memory.P: Sorts according to the percentage size of CPU

Securely and quickly change the MySQL database nameGuideMySQL does not seem to have a statement to change the Database Name (maybe I don't know). If you have the permission to manage the database server, you can directly change the directory name,

Install Etherpad in CentOS 7 (online collaborative editing) Install Etherpad in CentOS 7 (online collaborative editing) Etherpad is an online co-production platform and a network-based Real-time cooperative document editor. Three or four people can

Linux compression helper bzip2GuideTo compress a file, you can use a small number of bytes to encode the data in the file to significantly reduce the file size, and it is useful for cross-network file backup and transfer. On the other hand,