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Top Forums UNIX for Dummies Questions & Answers Restoring deleted file with rm -rf Post 302970844 by bakunin on Tuesday 12th of April 2016 12:13:10 PM
Old 04-12-2016
Kudos to drl for his succinct description of how to handle file security. He has it 100% right.

Quote:
Originally Posted by galford
I am running CentOS under a VPS..
Yes, but this doesn't tell us which filesystem you are running. Possible candidates include "ext2", "ext3", "ext4" (with or without an underlying volume group) and some others.

Quote:
Originally Posted by galford
i dont think it has backups Smilie So this means my file is lost, right?
Essentially: yes. There are some low-level possibilities (see above) to retrieve the content nevertheless, but they all have in common that:

- they need in-depth knowledge of the filesystem involved and are for experts only - try it as a beginner and you are likely to get yourself even deeper into troubles than you are already;

- even then they are not guaranteed to work. Most of these tools are "best effort" and sometimes they work, sometimes they work partly and sometimes they do work not at all;

- the necessity of backups can not be stressed enough and it is a painful (but valuable!) lesson to learn this - unfortunately it seems to be the only way that has a lasting effect. Generations of admins and users have neglected backups and all these generations have been in your shoes once before they started to develop healthy habits. (fwiw: me too ;-) )

You might consider using a desktop environment, like GNOME, KDE or something such. I don't like any of them, but most desktops offer a "waste bin" - a hidden directory of some sorts where "deleted" files and directories go. One can pull them out of there if they were not meant to be deleted. To be honest, I'd rather recommend developing responsible user habits (like double-check if what you type is really what you want), but before that goal is achieved such a "waste bin" might come in handy as a crutch.

I hope this helps.

bakunin
 

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dtc_install_centos(8)					      System Manager's Manual					     dtc_install_centos(8)

NAME
dtc_install_centos - bootstrap a CentOS install to use in a chroot or VM SYNOPSIS
dtc_install_centos <install root> <yum environment> DESCRIPTION
This shell script is part of the dtc-xen package, generally to be used by the dtc panel to install a new a Xen VPS server. This script is called by dtc_reinstall_os when the user chooses to install the CentOS operating system. How it works: it generates a temporary yum configuration in the yum environment directory, that directs yum to act inside the install root instead of in the base system; then it kindly requests yum to install the basesystem, centos-release and yum packages onto it. Yum then uses the configuration to download the required (usually, security-updated) packages and then perform the RPM installation process under the install root. It requires both RPM and yum. It does work under Debian (it was developed in Ubuntu first). It should also work on RPM-based systems without destroying the system-wide RPM and yum configurations. OPTION
<install root> Target directory where CentOS will be deployed. Must exist beforehand. <yum environment> Directory where yum will store the repository manifests and configuration. Will be automatically created. Cached RPMs and manifests will be left, as usual, in a directory var/cache/yum inside the install root. EXAMPLE
dtc_install_centos /root/yum /xen/13 This will setup the operating system in /xen/13, with the CentOS configuration folder in /root/yum. BUGS
It's limited to CentOS 5 at the moment. It must be run as root. Under some circumstances, the installation process itself may kill processes running on the host machine. The chroot yum does should be sufficient to avoid this, but we haven't been able, yet, to ascertain why this fails sometimes. SEE ALSO
dtc_reinstall_os(8) VERSION
This documentation describes dtc_install_os version 0.3.1. See http://www.gplhost.com/software-dtc-xen.html for updates. dtc_install_centos(8)
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