recover rm files linux

Requirements background:The Linux system's RM-RF command is too dangerous to remove the system files in one step. Write a shell script to replace the command, requiring that when a file or directory is deleted, a backup is made and then deleted.Here are two things to do in practice:1 Simple:Suppose there is a large partition/data/, each time you delete a file or

Recently in the Tutor write network bandwidth allocation simulation program, during the generation of a large number of temporary files, how to use RM instructions to delete these temporary files without deleting other specific files?For example, the following is a temporary file:temp101 temp102 temp103 temp104 temp105

replicate directories and all content inside them-A: Archive, equivalent to-DR--preserv=all (that is, preserve the attributes of the source file or directory, including the owner, the owning group, the permissions and the time)-D:--no-dereference--preserv=links (if the original file is a link, keep the original link format)--preserv=[attr_list] (reserved property)Mode: PermissionsOwnership: Belong to the main groupTimestamp: Time stampLinks: LinkXATTR: Special AttributesContext: ContextsAll: Al

between the file being deleted by the user and the increase in HDFs free space. When the deleted file remains in the/trash directory, if the user wants to recover the file, they can retrieve the browse/trash directory and retrieve the file. The/trash directory only saves the most recent copy of the deleted file. The/trash directory is no different from other file directories except one: HDFs has applied a special policy on this directory to automatic

, so even if the RM operation, but the system does not really delete the file, When only I_nlink and I_count are 0, the file is actually deleted. That is, you also need to dismiss the process's call to the file. 　　 The above-mentioned I_nlink and I_count is the true condition of the file deletion, but when the file is not called, does the RM operation delete the file after the deletion can be retrieved? 　　

Recover disk mistakenly deleted data using Extundelete toolPrinciple:A brief introduction to the knowledge of the inode. Under Linux, you can use the "Ls-id" command to view the Inode value of a file or directory, such as viewing the Inode value of the root directory, you can enter:[Email protected] Server-100 shell]# Ls-id/2/When recovering a file with Extundelete, you do not rely on a particular file form

operating system, the LS The command is not shown so clearly that you need to use the Lsof program in order to confirm which handle corresponds to which file in the Solaris system.5. Direct CP The handle file name is back to its original location.6. Recover the data fileComplete data File recovery.The principle of recovery is that, in the Linux operating system, if the file is removed from the operating sy

Attributes isNot restored. Loading FileSystem metadata ...153 groups loaded. Loading Journal Descriptors ...Descriptors loaded. SearchingFor recoverable inodesIn Directory/shell ...Recoverable inodes found. Looking through the directory structureFor deleted files ...5 recoverable inodes still lost. [[Email protected] Server-100 Recovered_files]# lspasswd Recovered_files[[email protected] Server-100 Recovered_files]# CD Recovered_files/[[email protect

compilation environmentYum install gcc gcc-c++-y(3) Install dependent packagesRPM-IVH e2fsprogs-libs-1.41.12-18.el6.x86_64.rpmRPM-IVH e2fsprogs-devel-1.41.12-18.el6.x86_64.rpmRPM-IVH e2fsprogs-devel-1.41.12-18.el6.x86_64.rpm(4) Unzip the installation package to/optTar jxvf extundelete-0.2.4.tar.bz2-c/opt(5) configurationCd/opt/extundelete-0.2/./configure(6) Compile and installMake make install(7) testUse the FDISK command to create a partition/dev/sdb1, mount it to/tmp, and add a new file or d

to perform an emergency boot and then restore GRUB using the Efibootmgr utility as the default boot loader. In addition to the low-level BIOS or EFI boot files, GRUB 2 relies on traditional files in/boot/grub. These files include file system drivers, video drivers, fonts, and GRUB configuration files (grub.cfg). Beca

How to recover the solution after the Linux environment variable is set incorrectly: Enter on the command line: Export Path=/usr/bin:/usr/sbin:/bin:/sbin:/usr/x11r6/bin and enter/etc/profile: This file sets the environment information for each user of the system, and the file is executed the first time the user logs on. and collects the shell settings from the configuration file of the/ETC/PROFILE.D directo

Tags: mount point condition EXT4 partition mount RPM-IVH next copy error message TorExperiment: In the case of partitioning, rm-rf/boot and/etc/fstab, recoveryFirst of all, we look at what is put in the/etc/fstab inside, you can see that the storage is the partition of the mount situation, delete partition will not be automatically mountedNext check/boot is stored in Linux core file/boot/vmlinuz-version-rel

If you do not need to install a WINDOWS disk, recover the damaged WINDOWS boot-LINUX general technology-Linux technology and application information on Linux. For more information, see the following. You can use install or livecd to create an existing system. I used install cd because it was too slow to load LIVECD. I

are successfully restored, but most of the files cannot be recovered.Trying to restore what the user has done. TAR. GZ Backup package, restore success, but open prompt error, intermediate data is destroyed, only limited export some sites.Final data recovery is successful.·[suggestion to the user]1, important data must not use a single disk storage environment, the current framework of a simple raid does not require a lot of input.2, must do a good jo

Load the system mount ISO image, set the CD drive to boot, click on the VMware menu bar, virtual machine-power-Enter the firmware when the power is turned on. Enter the system rescue mode (select the 3rd option) the network card needs to be configured on IP or cannot access the FTP server, note: The wildcard character after the IP is generally written, enter the following prompt for bash-4.1# bash-4.1# CD the/mnt/sysimage directory. Package Other bin

Today in the build MySQL Cluster service, before installing MySQL Cluster service, uninstall the original MySQL software package, accidentally the RPM command also unloaded, this miserable, nothing can be done. In Google has turned a lot of pages, even the official website also looked, did not solve my problem, according to my years of experience in Linux and Linux system RPM package installation characteri

1,DD operation is a simple copy by byte, what partition table Ah, MBR (master boot record) Ah all copy;1. Disk CloningThat is to copy the entire hard drive. Of course you first need to pick up a new hard drive on your computer and let the system recognize it. For example, the hard drive may be recognized as/DEV/SDB, and the original hard drive is called/DEV/SDA. Then you can simply execute on the linux command line:dd if=/dev/sda of=/dev/sdbYes, that'

as lucky as I am. This article collects some methods for recovering RM deleted files under Linux for your reference. First of all, the best way is to avoid this problem, here are a few suggestions: 1, the consequences of RM-RF misoperation is terrible, Rm-f also want to rec

Linux deletes files with special characters Sometimes we need to delete some files with special characters, but we don't know how to delete them, like I do, and here are some of the ways I've learned to delete: rm–-filename rm./-filename

to this user, use the find/-user Username: you can find the user-related files in the root directory and run the following command:#find ./ -nouser |xargs rm –rfCore FileWhen an error occurs when a program is running in the system, the system automatically saves the data that remains in the memory as core files. Over time, more and more cores will be left in th