Linux (Ubuntu) = Unix (NOT IMPORTANT - NO RUSH) Post: 302711191

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Top Forums UNIX for Dummies Questions & Answers Linux (Ubuntu) = Unix (NOT IMPORTANT - NO RUSH) Post 302711191 by Corona688 on Friday 5th of October 2012 01:33:15 PM

10-05-2012

Registered User

First and foremost, Linux is not UNIX because it says so. The GNU system which Linux is a part of stands for "GNU's Not UNIX". They named GNU that to set it apart from the very expensive commercial UNIX distributions that were dominant at the time.

It's extremely similar. Folders and devices and networking works the same way. Not all the utilities are quite the same, configuration is different, and the kernel's features are still changing as its developers experiment.

On the other hand -- not even all UNIX is alike. It's really not that different.

What do you really need to know about Unix? I'd start with the Bourne shell and the concepts underlying it(directories, files, and so forth). That will be handy no matter where you go in UNIX and LINUX. You can boot an OS in virtualbox, install another hard drive and dual-boot, boot a Linux livecd for an environment that's hard to mess up -- it's a CD, you can't delete something by accident. Lots of ways.

Corona688

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LEARN ABOUT DEBIAN

testdisk

TESTDISK(8)						       Administration Tools						       TESTDISK(8)

NAME

       testdisk - Scan and repair disk partitions

SYNOPSIS

       testdisk [/log] [/debug] [/dump] [device|image.dd|image.e01]

       testdisk /version

       testdisk /list [/log]

DESCRIPTION

	  TestDisk checks and recovers lost partitions
	  It works with :
	  - BeFS (BeOS)
	  - BSD disklabel (FreeBSD/OpenBSD/NetBSD)
	  - CramFS, Compressed File System
	  - DOS/Windows FAT12, FAT16 and FAT32
	  - HFS and HFS+, Hierarchical File System
	  - JFS, IBM's Journaled File System
	  - Linux ext2/ext3/ext4
	  - Linux Raid
	    RAID 1: mirroring
	    RAID 4: striped array with parity device
	    RAID 5: striped array with distributed parity information
	    RAID 6: striped array with distributed dual redundancy information
	  - Linux Swap (versions 1 and 2)
	  - LVM and LVM2, Linux Logical Volume Manager
	  - Mac partition map
	  - Novell Storage Services NSS
	  - NTFS (Windows NT/2K/XP/2003/Vista/...)
	  - ReiserFS 3.5, 3.6 and 4
	  - Sun Solaris i386 disklabel
	  - Unix File System UFS and UFS2 (Sun/BSD/...)
	  - XFS, SGI's Journaled File System

	  It can undelete files from
	  - DOS/Windows FAT12, FAT16 and FAT32
	  - Linux ext2
	  - NTFS (Windows NT/2K/XP/2003/Vista/...)

OPTIONS

       /log   create a testdisk.log file

       /debug add debug information

       /dump  dump raw sectors

       /list  display current partitions

SEE ALSO

       fdisk(8), photorec(8).

AUTHOR

       TestDisk 6.13, Data Recovery Utility, November 2011
       Christophe GRENIER <grenier@cgsecurity.org>
       http://www.cgsecurity.org

2011								     November							       TESTDISK(8)