Linux

Disable the Apache test page under CentOS. After apache is installed and started in CentOS, CentOS adds a test page for Apache by default. After the installation is complete and the default configuration is maintained for Apache, enter the domain

Script: only change a long row. For example, scan a file quickly to see which rows are too long: 1awk '{if (length ($0)> 72) another interesting method of {print $0} 'filename is to use the $ # vamname structure in shell. It returns the length of

Apache Subversion (SVN for short) is an open-source version control system installed on the SVN server in Ubuntu. It uses a branch management system as opposed to the cross-section (RCS) and CVS, it is designed to replace CVS. More and more control

Bash Signal Processing Command linux signal [plain] 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE 9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM 16) SIGSTKFLT 17) SIGCHLD 18)

Unable to obtain the lock/var/lib/dpkg/lock-open (11: temporary resource unavailable) solve the problem: an error occurs when the program is updated: unable to obtain the lock/var/lib/dpkg/lock-open (11: temporary resource unavailable) solution: in

This article discusses the serious problem of iowait caused by intensive transactions. 1. Overview in linux, a database server with dual-sata disks and RAID 1 is installed. I ran a stored procedure and inserted tens of millions of records into a

Selinux command set Summary 1. Related command sets: sestatusgetenforcesetenforce 0/1id/ls/ps-Z view object chon [OPTION] context files/chon [OPTIONS] -- reference = REF_FILES FILES-f force execution, even if there is an error message, it is not

In Ubuntu linux on the campus network, the Cert Certification finally settled the problem one afternoon. in Ubuntu Linux on the virtual machine, the Cert Certification was used to access the Internet. Because no tutorial can be found during the

Pycurl error 6-"Couldn't install something ERROR, apache installation startup solves the following error when executing the statement yum install cvs sysstat lrzsz gcc-c ++ ncurses-devel libxml2-devel libjpeg-devel libpng-devel openssl-devel ntp

Representation of special characters in LINUX Shell # Note 1. comment # comment 2. in the middle of the quotation mark and # representation # itself 3. echo $ {PATH # * :}# parameter replacement, not a comment 4. echo $(2 #101011) # Number

The use of linux kernel CT I. overview we can use Shell to implement simple control flow functions, such as loops and judgments. However, manual intervention is required for scenarios that require interaction. Sometimes we may need to implement

The iketn system automatically detects and installs the required software package. Remember that the first time I started to get in touch with Linux, I started to use the iketn9.04 system. In 10 years, I had a second-hand Pentium 4 m DELL notebook.

The old Debian source synchronization script Debian Lenny source is officially archived, making many servers that cannot update the system unavailable. archive.debian.org is too slow to access and cannot write a script to synchronize lenny source.

Linux shell is a simple method to replace strings in multiple files in batches in Linux. You can use the sed command to replace strings in multiple files in batches. You can use the sed command to replace strings in multiple files in batches. Sed-I "

The first part of the tutorial taken from vimtutor is small. 1. You can use an arrow or an hjkl letter to move the cursor in the screen text. H (left shift) j (downstream) k (upstream) l (right shift) 2. to enter the vim drivers (from the command

Modify the ubuntu cache and use it in ubuntu. The value of swappiness is closely related to how to use swap partitions. When swappiness is set to 0, the physical memory is used to the maximum extent, and then the swap space is used. When swappiness

Log on to Linux as a root user and log on to Linux as a normal user. To enable root for the first time, perform the following operations: XX :~ $ Sudo passwd root [sudo] password for XX: enter the password for confirmation: enter the password to

How can a common user become a root user after being promoted to a root user using a common user to log on to Linux? Perform the following operations: sudo gedit/etc/passwd, find the section describing the user, and change its id to 0. Save and log

CentOS manually configure static IP address 1, vi/etc/sysconfig/network-scripts/ifcfg-eth0ifcfg-eth0 corresponding to the NIC, if there are multiple NICs under the network-scripts directory there will be ifcfg-eth1, ifcfg-eth2 and so on. Modifying

From getting started to being proficient in analyzing the log system agenda understanding syslog system familiar with syslogd configuration files and Their syntax learn to view system logs understand the necessity of log rolling and how to implement