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Original connection:Administrator-required Linux system monitoring tools#1: top-process activityTop provides a real-time, dynamic view of the current running system, which is the running process. By default, displays the task with the highest CPU

The original title: GdB combined with coredump to locate the crash processOriginal: http://lazycat.is-programmer.com/posts/31925.htmlThe method I've tried on in this file has been done on CentOS and Ubuntu12.04, but I don't have a core file on one

Date-print or set the system date and timeDisplay the current time in the given FORMAT, or set the system date.Function: Displays the current time in the given format, or sets the system date.Syntax: Date [OPTION] ... [+format]Parameters:-d-sFormat

Watch is a very useful command, basically all Linux distributions with this gadget, like a name, watch can help you monitor the results of a command, save you to manually run over and over again. Under Linux, watch is the periodic execution of the

The top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Here is a detailed description of how it is used. Top is a

1. the network download in the system and CPU corresponding versionwebsite Link: Http://nmon.sourceforge.net/pmwiki.php?n=Site.Download2. Download the nmon tool and upload it to the server and execute the following command[Email protected] mnt]#

Date Modified:The order of the time set to May 10, 2009 is as follows:#date-S 05/10/2009Modification Time:The command to set the system time to 10:18 A.M. 0 seconds is as follows.#date-S 10:18:00To modify the time zone:Locate the appropriate time

The time to modify Linux can be modified by using the Date Directive: The command for the time set to May 10, 2009 is as follows: #date-S 05/10/2009 modified: The command to set the system time to 10:18 A.M. 0 seconds is as follows. #date-S 10:18:00

Weekend's okay. For fun, Ubuntu, first you want to use Windows desktop.Desktop shortcut is to the/usr/share/applications/below the application launch file copy to the desktop;The following is mainly about how to add a desktop control. I'm using a

1. System directoryLS is the abbreviation of the list, LS LS/As long as the list of system directories and file commands and its function;[[email protected] ~]# LS/bin Dev Home lib64 mnt proc run SRV tmp var boot etc Lib media opt root sbin sys USr

Watch can help you monitor the execution of a command, which saves you from doing it over and over again. Under Linux. Watch is the periodic execution of the next procedure. and displays the execution results in full screen. You can use him to

First, Linux common file operations　　　　(1) CD/: The Slash "/" in the Linux system represents the root directory. CD/, enter the root directory.(2) CD ~ command is to enter the user's home directory in the system, such as XZ user, then enter the/ROOT/

In the previous section we wrote about the tree and the two-tree knowledge.http://blog.csdn.net/wtyvhreal/article/details/43487095The heap is a special complete binary tree.All parent nodes are smaller than child nodes, so a complete binary tree is

C language needs to master thousands of programming skills, in order to have some programming ideas to write some programs;Python can write many programs with hundreds of programming skills. Jiaxing private Detective (http://user.qzone.qq.com/7786017

Brief introduction:HASHMAP:Has a fast access speed, but the traversal order is indeterminate.HashMap allows a maximum of one record's key to be null, allowing multiple records to have a value of NULL.HashMap Non-thread-safe , where multiple threads

This week ' s JavaScript News Read this issue on the Web | Issue Archive JavaScript Weekly Issue 184June 6, 2014

Piping and "-"Tar cvf /home | Tar xvf-Use-to replace stdout stdinThe difference between this and the pipeline is that the pipeline is the output character stream, which is considered the previous file.Tee Dual Guide

General StatementHashMap as a very important data structure in Java, for key-value types of storage (cache, temporary mapping table, ... And so on, HashMap itself is non-thread-safe, for multi-threaded conditions need to do competitive conditions,

Built-in time# Timestamp Conversion system time 2018-04-04 11:00:55# CTime = Time.localtime (Time.time ()) # Print (Time.strftime ('%y-%m-%d%h:%m:%s ', CTime)) # Sleep 1 seconds (seconds) # print (Time.sleep (1)) # Output current system time # x =

Top real-time dynamic display system status. (CPU, memory, swap, Task)1. Top summarizes CPU, memory, swap, task information, and list to display the CPU, memory, swap, task information of the process dimension2. Top-h-P PID summarizes CPU, memory,