Linux

View existing disk usage after new disk starts the systemCommand df-h Looking at the existing disk, we found that the system already has a 10G disk SDB, which has 1305 cylinders, each with a 8225280 bytes (about 8M)But it's not partitioned.Command

10.23 Linux Task Scheduler cron The operation of the Cron Task Scheduler for Linux is done through the crontab command. The crontab command is used to submit and manage the tasks that the user needs to perform periodically, similar to

cloning a virtual machineShutting down a virtual machine#shutdown-H nowVirtual machine creation complete, turn on cloned virtual machine, modify IP address#vi/etc/sysconfig/network-scripts/ifcfg-ens33#systemctl Restart Network.service#ifconfig ens33#

Shell Scripting Exercises1, write script/root/bin/checkdisk.sh, check the disk partition space and inode utilization, if more than 80%, the broadcast warning space will be full#!/bin/bash# script/root/bin/checkdisk.sh, check the disk partition space

2.6 Relative and absolute pathsThe file path is the directory where the file is stored;The absolute path, which is the path from the root;Relative path, is relative to the current directory path;Displays the current directory command #pwd2.7 CD

1. OpeningD: Ask a folder (directory)-: Indicates a normal binary file (compressed package, file, etc.) L: Indicates a soft connection file (link)2, permissions (3 for a group)R: Read permission (read) W: Write Permission (write) x: Execute

Note: RPM and software-related commands are equivalent to software Assistant management software under Windows1 See if the current Linux system has Java installed1) in the command window, you can view the OPENJDK version information that comes with

One, Cat/proc/cpuinfo |grep "model name" && cat/proc/cpuinfo |grep "Physical ID" # Linux CPU SizeSecond, Cat/proc/meminfo |grep memtotal # Memory sizeThree, fdisk-l |grep DISKP # hard disk sizeIv. uname-a # Linux System Information commands for

1. (single choice) the ability to connect a KVM virtual machine directly to a physical network and to communicate with other hosts is () connection mode.A) NAT ModeB) Isolation modeC) Bridging mode br0D) Route mode2. (single choice) in the VSFTPD

After building tomcat under Linux, each boot and shutdown goes to Tomcat's Bin directory for execution./startup.sh and./shutdown.shThis is inconvenient, here's how to start, close, and restart Tomcat like the LS MV CP commandThe first step to create

Linux first week study notes (+)2.10 Environmental Change TH amount PA PATH : Just join the PATH path can be opened directly to the command, you can not run the absolute path of the command. This is where the environment variables are working.

1. Download the JDKDownload from Oracle Website:Http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.htmlDownload from Baidu Cloud:Https://pan.baidu.com/s/1c2Po0b22. Press to install JDKFirst install the JDK Bao chmod 755

I installed, configured, and tested SSH under Win7+vmware with two Ubuntu virtual machines. Install Openssh-server on the server side.sudo Install Openssh-server # seemingly sudo apt-get installs SSH can be installed SSH client+server

1. First chapter, installation of Linux system1. Open WMware 12 virtual machine software, create virtual machine2. Custom Configuration3. Install the operating system later4. Select the system type (Redhat 7 64-bit in Linux)5. Select path and

1. Log in to Linux and switch to the root userSu Root gets root user rights, the current working directory is unchanged (requires root password)OrSudo-i does not require the root password to switch directly to root (requires the current user

One, download a winscpWINSCP is an open-source graphical SFTP client that uses SSH in a Windows environment. The SCP protocol is also supported. Its main function is to copy files securely between local and remote computers. WINSCP can also link

Linux shell programming: Chapter 1 basics, linuxshell Chapter 1 BasicsShell has the advantage of processing the underlying services of the operating system,The advantages of Python and php are development and O & M tools, web interface management

Install zookeeper and centoszookeeper on centos Download the zookeeper package I am using the Secure CRT Connection Tool   First, check the IP address on the centos terminal. Command: ifconfig   Open the SecureCRT tool and enter the IP address and

VMware installation CentOS 6.9 tutorial, vmwarecentos CentOS (Community Enterprise Operating System) is one of the Linux releases. It is compiled by Red Hat Enterprise Linux according to the open source code. Because of the same source code, some

Linux driver entry (1): Hello, world, entry hello I have been learning the Linux driver for half a year, but I am nearing graduation. Due to the delay in various transactions, many things are forgotten. Now I am writing this blog to record the