, if you are prompted to receive a message, you can open the Chat window, and if you switch the workspace, the main panel disappears, leaving only the icon for the notification area. You can bring up the main panel through Ctrl+alt+z, this shortcut can be set in QQ.12. Enable ICC color profileThe display color is cold, I found a MAC.ICC color profile, but Lmde 2 mate's control center does not have a "color" setting item. Install Xcalib (sudo apt-get install xcalib), place the MAC.ICC color profi
Tee Command--function: reads the standard input data and outputs its contents to a file1 W.H.O. Tee W.H.O. . out # writes the output of the WHO command to the same directory file Who.out 2whogreptee. TXT # After search filter and then write 3 parameters:4 -A or--append #附加到已有文件后面, default is overwrite 5 -i-i or--ignore-interrupt #忽略中断信号 6 --version #显示版本信息PWD command-function: Displays the full pathname of the current directory, without bein
Workaround:1. Enter "Dconf-editor" in the terminal (see Figure 2). (if not installed with "sudo apt-get install dconf-tools" installation.) )Figure 22, expand the org/gnome/gedit/preferences/encodings (see Figure 3)Add ' GB 18030 ' to the value of auto-detected, add it to uft8, and press ENTER;In the Show-in-menu value, add ' GB18030 ' to the front and press ENTER. ----Facts prove: Join GBK seemingly can solve!!! Figure 3Now open txt and other text fi
the tif_need_resched flag in task_struct to represent the request, and the kernel will actually complete the request in the next appropriate way.3 Activation of the periodic scheduler 3.1 timer periodic activation schedulerTimers are a mechanism that Linux provides for a timed service. It wakes up a process at a specific time to do some work.After each clock interrupt of the low-resolution timer completes
Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tool
searched; ②find/root/-type f–mtime +5 is search/ Files modified 5 days before the root directory)26. Give the output of the command such as Find,ls to the back processing (see previous example)--Xargs27. Print a sequence of numbers-seq(similar to echo{1..5})28. Help to view commands and configuration files, etc.--man29. Move directory or Rename--MV(renamed General with rename)30. Display the current path-pwd31. View history of previous input commands"Summary of common symbols for
Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tool
Daily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up and running. For this reason, we have compiled the list of 18 most commonly used command line tool
18 command line tools for Linux performance monitoringDaily monitoring and debugging of Linux system performance is a heavy task for the system and network administrators. Five years after working as a Linux system administrator in the IT field, I gradually realized how difficult IT is to monitor and keep the system up
One linux command every day (18): locate command link: One linux command every day (1): ls command http://www.2cto.com/os/201210/163049.html ; One linux command every day (2): cd command http://www.2cto.com/os/201210/163050.html A linux command (
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2. vmstat– Virtual Memory Statistics Linux VmStat commands for displaying virtual memory , kernel thread , disk Statistics for , system process , I/O block , interrupt , CPU activity , and more. By default, the Vmstat command is not available under the Linux system, and you need to install a that contains the Vmstat program, sysstat packages. A common use of the co
Performance Test Training: 18 commands and tools to help you locate Linux performance issuesPoptest is the only training institute for developing Test and development engineers in China, aiming at the ability of the trainees to be competent in automated testing, performance testing and testing tools development. In Poptest's LoadRunner training, in order to improve the performance of students experience, ad
LINUX video lecture (18 sets)-Linux general technology-Linux technology and application information. The following is a detailed description. Because the file is too large, you can directly give it to everyone! This article is provided to anyone who really wants to learn LINUX
Linux servers. However, these commands require the user to log on to the remote server via SSH. In addition, web-based monitoring tools can also be used to accomplish the same task. Ntop and Darkstat are among the two basic web-based network monitoring tools for Linux systems. In addition to enterprise-class monitoring tools such as Nagios, they provide a number of features that not only monitor the server
content is data that we humans can read directly, such as numbers, letters, and so on.Almost as long as we can use it as a set of files belongs to this file type.For example, you can use the command: Cat ~/.BASHRC to see the contents of the file. (Cat is an instruction to read the contents of a file).2>. Binary (binary) file:Linux systems are not only known and can execute binaries (binary file).Executable files in Linux (scripts, text-based batch fi
. Nonprofit organization OISF (Open Information Security Foundation) develops and owns its copyrights.Vnstat php– Network traffic monitoringVnstat PHP is a web-based front-end rendering of popular web Tools "Vnstat". Vnstat PHP presents the network usage in a beautiful graphical interface. He can display upload and download traffic in hours, days, months, and output summary reports.nagios– Network/server monitoringNagios is a leading and powerful open source monitoring system that allows network
the statistics of the system in a similar dstat format; like Dstat, it collects statistical information about different resources of the system, such as processors, memory, and networks. A simple example given here shows how to use COLLECTL to report network usage/bandwidth.
$ collectl-sn-ot-i0.5
Waiting for 0.5 second sample ...
# ----------Network---------->
#Time kbin pktin kbout pktout
10:32:01 40 58 43 66
10:32:01 27 58 3 32
10
For system and network administrators, it is a heavy task to monitor and debug the performance of Linux systems on a daily basis. After 5 years working as an administrator in the IT field as a Linux system, I gradually realized how difficult it was to monitor and keep the system up and running. For this reason, we have written a list of the 18 most commonly used
and the associated filename. That is, we can find information about the file by accessing the file descriptor of the process. When a file in the system is accidentally deleted, as long as there is a process in the system that is accessing the file, then we can recover the contents of the file from the/proc directory by lsof.If the/var/log/messages file is deleted due to misoperation, then the method to restore the/var/log/messages file is as follows: First use lsof to see if there is currently
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