linux undelete

Terminal logout exit Terminal exit Exit Ctrl+u the end of the ctrl+d to delete the next ctrl+e move to the end of CTRL + a move to the front ctrl+k delete the four after the cursor, statstat to view the file details[[Email protected]1]# stat/root/1/1. Txt.bak.bak File: '/root/1/1. Txt.bak.bak ' Size:0Blocks:0IO Block:4096Regular Empty filedevice:ca01h/51713d Inode:158242Links:2Access: (0644/-rw-r--r--) Uid: (0/root) Gid: (1003/Ruanwenwu) Access: .-Ten- - A: -:06.221000000+0800Modify: .-Ten- -

Linux system add root certificate linux Certificate Trust List, linux Certificate 1. https certificate access in linux [root@boss-test-dev001-jydx~]#curl-vhttps://mobile.mycard520.com.tw*Abouttoconnect()tomobile.mycard520.com.twport443(#0)*Trying220.130.127.122...connected*Connectedtomobile.mycard520.com.tw(220.130.127

System callsis a soft interrupt, API function, let the upper application fall into the kernelProcess ManagementProcess scheduling, scheduling algorithm, process three-stateProcess is the minimum unit fork for CPU scheduling resourcesVFS Virtual File ManagementUnder Linux, all the devices are filesDriver Bus Model 2.4 2.6 (TRUE) Support PnPExt3 ext2 vfat File Management system----> Driver Development under the driver bus modelMemory managementProcess l

Programmers are lazy, you know. Recently in development, you need to use the server's IP and Mac information. But the server is installed on the Linux system, for the multiple network, in the acquisition of IP generated a lot of problems. The following is a method for Java to obtain a local IP on a Windows system. Paste Code: Package com.herman.test; Import java.net.InetAddress; /** * @see get computer IP * @author herman.xiong * @date May 16, 20

1.The number of files in/usr/include/Linux and/usr/src/Linux/include/Linux is notThe number of folders varies. For example, the/usr/include/Linux does not have the mosules folder, while the/usr/src/Linux/include/LinuxThis folder is available. /Usr/src/

Linux Directory Architecture /root directory /bin commonly used commands binary file's catalogue /boot store files that must be read when the system is started, including the core (kernel) /boot/grub/menu.lst Grub Settings /boot/vmlinuz kernel RAM Disk required for/BOOT/INITRD core decompression /dev System Peripheral Equipment /ETC System Related setup file /etc/dir_colors Set Color /etc/hostname set the user's node name /etc/networking only yes indi

New users talk about Linux, new users linux Directory: What is Linux? Differences between Linux and UNIX Comparison between Linux and Windows What is the Linux release? Linux applicatio

Document directory I. Linux operating system source Ii. Basic Linux knowledge Iii. Introduction to C Programming in Linux This article is original and must be reproduced with the following source:Http://blog.csdn.net/qinjuning Starting from today, I made up my mind to step into the Linux Hall step by step. Wh

0. Most commonly used Pstree:[Email protected] temp]# Pstree-a|grep Multe| | '-multepoolser| | '-multepoolser| | ' -2*[{multepoolser}]1. > TopAll system processes can be displayedPress U, and then enter the appropriate execution user name, such as TomYou can see all the processes that Tom user started and the corresponding PID2. > Pstack pidYou can see the running state of each thread under this PID,[[email protected] multepoolserver]# pstack 14944 (PID number of the process)Thread 2 (thread 0x4

[Linux Device Driver] linux address type, linux Device address type List of address types used in Linux: User virtual addresses) The normal address visible to the user space program. The virtual address length is 32-bit or 64-bit. It depends on the underlying hardware architecture. Each process has its own virtual addr

[Linux] linux Command learning-netstat, linux-netstat Many linux services are related to the network. When the service cannot be called, the startup port is occupied, or the firewall is blocked, you need to query network problems, the netstat command only uses one or two parameters. Common options: -A (all) shows

Linux basic Review (1)-Linux System Overview, linux Overview1. What is an operating system? What is the relationship between it and hardware and other software? An operating system is a system software (or a set of programs) that controls and manages various hardware and software resources in a computer system and effectively organizes multiple programs to run.

Transferred from Http://beterfly.blogbus.com/logs/23724282.html Basic commands:Logout: LogoutLog on to login againExit to exit the current user Shutdown: shutdown + timeExample: shutdown now (shutdown now or immediately)Shutdown-C cancel all shutdown settings (shortcut: Ctrl + C) Restart the computer:Shutdown-r restart timeExample: shutdown-RReboot (immediate restart) is the same as shutdown-R In Linux, there are seven run_level_number running levels

Tags: share institute public number src inux new VMW http Silicon Valley1.1 Overview 1.2Linux and Windows differences 1.3Centos Chapter 2 installation of VMs and Linux 2.1 VMware InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xusf.html2.2 CentOS InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xutv.html2.3 Vmtools InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xuu3.htmlThis tutorial by the Silicon Valley Institute of Education

Linux services)It is important for Linux users. Disabling unnecessary services can make Linux run more efficiently, but not all Linux services can be disabled. After installing centos Linux today, we found that many services were started when

This feature page summarizes the most popular Linux distributions basic introduction and, if you are a new contact with Linux, the introduction may be helpful to you, if you think Linux use predecessors, you can also leave your comments and experience in the review, so that more people get help!First introduce the following several domestic

Linux tomcat installation, Linux configuration Tomcat,linux tomcat modify memory, Linux tomcat modify port>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>? Copyright Sweet Potato Yiu March 1, 2017http://www.cnblogs.com/fanshuyao/JDK installation See:http://fanshuyao.iteye.com/blog/2302562First, the installation of Tomcat is very simp

The Linux machine doesn't have to clean the hard drive at all, which is why you haven't seen the Linux user defragment the hard drive. Linux file system is a much better file system than Windows FAT, FAT32, NTFS, they can not only set permissions on the file, the implementation of full protection, and can be "used more neatly", "the less the more fragmented"! You

Record what you have learned O (∩_∩) o haha ~MakefileLINK.BIN:START.O MAIN.OArm-linux-ld-tlink.lds-o link.elf $^Arm-linux-objcopy-o binary link.elf Link.binarm-linux-objdump-d link.elf > Link_elf.disGCC Mkv210_image.c-o mkmini210./mkmini210 Link.bin 210.bin%.O:%. SArm-linux-gcc-o [email protected] $%.O:%.cArm-

The waiting queue of Linux kernel is based on the double cyclic list, which is closely combined with the process scheduling mechanism, and can be used to realize the core asynchronous event notification mechanism. In this list, there are two types of data structures: The waiting queue header (wait_queue_head_t) and the Wait queue item (wait_queue_t). Both the wait queue header and the Wait queue item contain a list_head type of domain as a "join". It