Linux

Bash and its features:Shell: ShellGui:gnome, KDE, XFCECli:sh, CSH, ksh, bash, tcsh, zshProcess: In each process it appears that only the kernel and the current process exist on the current hostA process is a copy of a program, and a process is a

Directory Management:LS, CD, pwd, mkdir, Rmdir/treeFile ManagementTouch, stat, file, RM, MV, NanoDate Time:Date, clock, Hwclock, CATo view text:Cat, TAC, more, less, less, head, tailCat: Connect and display-N-ESplit screen display:MORE: Flip

The Linux system enables users to create files or folders that contain hyphens (-), and an incorrect operation may sometimes result in the following files or folders:[[email protected] aa]# touch /tmp/aa/{,-, \\}-{0,1,2,3,4,5}[[email protected] aa ]#

1th column min 1~592nd Hour 1~23 (0 = midnight)3rd Liege 1~314th Column Month 1~125th Column Week 0~6 (0 = Sunday)6th List of commands to runHere is the format for crontab:Time-sharing day and month command to runHere are some examples of crontab

# Download Kernel source code compile kernel CD~/linuxkernel/wget https://Www.kernel.org/pub/linux/kernel/v3.x/linux-3.18.6.tar.xzXz-d linux-3.18.6. Tar.xz Tar-XVF linux-3.18.6. Tar CD Linux-3.18.6make I386_defconfig make # usually compiles for a

In the Linux system, we often need to ask the file to operate, the file read and write often there are a variety of problems. Here I will tell you about the problems I encountered while doing file read and write operations.Background: First write to

First, we know that the driver is part of the kernel, so what role does the driver play in the kernel?The role of the device driver in the kernel: they are separate "black boxes" that enable a particular hardware to respond to a well-defined

1. How do I change the Linux hostname?Editing a configuration file/etc/sysconfig/networkChange Hostsname, save exit after restart effective;[email protected] ~]# cat/etc/sysconfig/networkNetworking=yesHostname=yonglinux.com2, Login to Linux, in

1,/etc/passwdBy: Split into 7 fields(1) User name rules: uppercase and lowercase letters, numbers, minus signs (not appearing in the first place), dots, and underscores, other characters are illegal(2) x put the password and put it on the/etc/shadow

This content comes from bird's private cuisine1. Directory-related Operations1.1 Special Directories . Represents this Layer directory .. Represents a previous level directory -Represents a previous working directory ~ Represents the

First, Linux configuration network card1) Get IP automaticallyIf the DHCP client uses dhclient to obtain an IP address2) Manual Configuration[[email protected] ~] #ifconfig #查看ip地址[[email protected] ~] #vim/etc/sysconfig/network-scripts/ifcfg-eth0

The log of connection time in Linux is usually recorded by the two files of/var/log/wtmp and/var/run/utmp, but these two files cannot be viewed directly with cat, and the file is automatically updated by the system, we can use W, who, Finger, ID,

Just installed CentOS, the default configuration is dynamic IP, if the virtual machine restarted (although not often), the IP address switched, and then use the Remote tool connection to re-change the address, laborious.Today, a static address is

in a Linux system, the mistake of the RM command is a very easy thing to happen. Therefore, how to avoid the damage caused by the RM command is very important. In the Linux system to do the RM command interaction is actually very simple, just need

Personally, the choice of Linux distribution is only related to the distribution of the design concept and their own compatibility, and other learning ah what the relationship is not big. The same kernel, most things are similar, no difference

One sentence a day =.=!: Complaining is only incompetent performance, without it! Therefore, try to avoid too much contact with people who complain all day long.No wonder brother Ma so grounded gas son, full of is positive energy 650) this.width=650

One, gzip toolSecond, bZIP toolsThree, XZ toolsFour, zip and unzipV. TarI, Gzip and zcat (-D,-N)[[Email protected] ~] #gzip-9 install.log//compression level 1~9,1-faster,9-better-rw-r--r--. 1 root root 3719 March 9 10:58 install.log.gz[[Email

Analysis of accton and lastcomm commands in linux, acctonlastcomm We use the accton command to enable or disable process statistics. If no parameters are included, the process statistics will be disabled. Its main parameters are as follows: (1)-V or

Linux system composition In computer system applications, Windows is definitely not the only operating system platform to be used. In the field of desktop and server operating systems, Linux is undoubtedly the most eye-catching. Linux operating

One linux Command every day-halt and linux Command halt The halt command is used to shut down the running Linux operating system. The halt command first checks the system's runlevel. If the runlevel is 0 or 6, the system is shut down. Otherwise,