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Unix/Linux Basics

Recently I've noticed more naive users in the Unix world. I see it both in the newsgroups and in email I get, and it's also apparent in the things folks search for here.

This section of the site is for those folks. It's an expansion of the New To Unix I had already written; this will go into more depth, do more hand-holding and I hope will make Unix/Linux more understandable. See Unix Articles for the complete index of articles. Also, use Search to more easily find whatever it is you need.

Basics : Most popular in this category: Routing Basics , Email Basics , Xinetd , VPN's and other remote access

Title	Author	Date			Last comment
Here files (shell scripting)	Anthony Lawrence	2012 10			2012/10/09 10:59 TonyLawrence
No clobber scp - scp without overwriting	Anthony Lawrence	2012 10			2012/10/07 16:44 TonyLawrence
Capture and report (Bash Scripting)	Anthony Lawrence	2011 11
Do you hate your computer?	Anthony Lawrence	2011 09			2011/09/15 09:23 BigDumbDInosaur
Death of the command line revisited	Anthony Lawrence	2011 09			2011/09/10 07:45 TonyLawrence
Cranky Old Newsgroup Guys	Anthony Lawrence	2011 09			2011/10/22 12:12 BigDumbDinosaur
Email addresses still matter (for now)	Anthony Lawrence	2011 09
Why defragging your computer may be a waste of time	Anthony Lawrence	2011 09			2012/12/03 09:59 BigDumbDinosaur
Common email problems	Anthony Lawrence	2011 08			2011/09/02 15:24 ed
Why you shouldn't send Word attachments	Anthony Lawrence	2011 08			2011/08/31 10:27 BigDumbDinosaur
10 things - no, 11 things - you say that drive your computer tech person crazy	Anthony Lawrence	2011 08			2011/09/20 18:15 anonymous
Switching to Mac OS X - quick tips for new users	Anthony Lawrence	2011 08
A non-technical guide to understanding and fixing TCP/IP problems on a network	Anthony Lawrence	2011 08			2011/08/14 16:00 BigDumbDinosaur
Getting Started with Amazon Web Services	Anthony Lawrence	2011 04			2011/04/12 15:09 TonyLawrence
Tips on Hard Drive Problems	Anthony Lawrence	2011 02			2011/03/02 11:03 BigDumbDinosaur
Using the shell (Terminal) in Mac OS X	Tony Lawrence	2002 12			2013/01/27 07:47 TonyLawrence
Using sudo	Tony Lawrence	2002 02			2013/03/05 11:27 lou
Basic DNS: PTR records and why you care	Tony Lawrence	2004 07			2011/05/02 16:16 BigDumbDinosaur
Writing and Compiling C programs on Linux	Tony Lawrence	2004 12			2012/02/10 08:19 TonyLawrence
GPG/PGP Basics	Tony Lawrence	2001 11			2013/04/05 14:11 ClovisSangrail
UNIX Basics-JOB SCHEDULING	Steggy	2004 05			2011/10/29 00:37 anonymous
Understanding PAM	Tony Lawrence	2005 03			2013/04/18 05:15 anonymous
Recursive chown	Anthony Lawrence	2006 03			2012/08/16 07:29 TonyLawrence
Controlling core files (Linux)	Tony Lawrence	2005 03			2011/11/06 09:33 TonyLawrence
Mac Screen sharing is not just for Macs	Anthony Lawrence	2008 01			2012/03/22 08:08 TonyLawrence
Tightvnc, Chicken of the VNC	Tony Lawrence	2003 10
Numeric Unix Error Messages	Tony Lawrence	2001 12			2010/04/06 12:28 TonyLawrence
Routing Basics	Tony Lawrence	1997			2013/04/27 10:05 TonyLawrence
Basics: rsync	Tony Lawrence	2003 07
Operating System Concepts	Tony Lawrence	2003 05
What is a Managed Switch?	Tony Lawrence	2005 08			2012/07/17 15:00 TonyLawrence
Understanding Floating Point Formats	Tony Lawrence	2003 09			2011/10/28 06:18 TonyLawrence
Unix Permissions	Tony Lawrence	2001 04
General Trouble Shooting	Tony Lawrence	2000 08			2010/12/24 11:53 anonymous
Cron At and Batch	Tony Lawrence	2000 01			2012/06/11 10:34 TonyLawrence
VPN's and other remote access	Tony Lawrence	2001 04			2011/05/09 07:07 TonyLawrence
Understanding Device files	Tony Lawrence	1998			2012/08/30 06:31 TonyLawrence
Floppy Disks	Tony Lawrence	2001 01			2013/03/25 17:48 TonyLawrence
Xinetd	Tony Lawrence	2003 07			2010/10/29 10:29 SalvoLtWorfTomaselli
Unix and Linux startup scripts, Part 1	Anthony Lawrence	2009 12
Understanding Packed BCD	Tony Lawrence	2003 09
Continuation Lines	Anthony Lawrence	2006 06			2010/05/27 21:07 anonymous
How can i mount a ISO Image CD ?	Tony Lawrence	2004 07			2010/07/10 08:08 TonyLawrence
Why is my system slow?	Tony Lawrence	2001 12			2010/06/11 09:03 veera
Simple XML POST and reply	Anthony Lawrence	2010 03			2010/03/24 10:04 TonyLawrence
Understanding Serial Wiring	Tony Lawrence	1992
Using color in shell scripts (Linux, Mac OS X)	Anthony Lawrence	2009 11			2010/01/03 13:22 BigDumbDInosaur
Sort -u vs. uniq	Anthony Lawrence	2009 11
Understanding Virtual Domains	Tony Lawrence	2003 07
Networks 101	Tony Lawrence	1998 03
Upgrading to Leopard Upgrading to Panther Upgrading to Snow Leopard
Random Numbers	Tony Lawrence	2003 09			2010/07/13 09:10 TonyLawrence
Bash typecasting	Anthony Lawrence	2006 08
taskset for CPU affinity	Tony Lawrence	2005 10			2012/01/09 21:03 TonyLawrence
SSH	Tony Lawrence	2001 05
Using Tapes and tape drives	Tony Lawrence	1998 09
Basic TrueCrypt Usage	Anthony Lawrence	2010 01			2010/01/12 08:32 TonyLawrence
The amazing tool called netcat	Girish Venkatachalam	2009 08
Symlinks	Tony Lawrence	2005 10
Network Troubleshooting	Anthony Lawrence	2010 03			2010/03/16 17:20 AndrewSmallshaw
Unix and Linux startup scripts, Part 2	Andrew Smallshaw	2009 12			2009/12/11 08:55 TonyLawrence
Using the Korn Shell	Tony Lawrence	1997
Why do programmers count from zero?	Tony Lawrence	2003 07
VoIP Basics	Ruchi Gupta	2006 04
Configuring SCO's GUI	Tony Lawrence	1998 04
What is a router?	BigDumbDinosaur	2005 09
What is mount?	Anthony Lawrence	2006 07
Understanding Dumb Terminals	Tony Lawrence	1998 12
Concepts in Cryptography	Girish Venkatachalam	2009 08
Software Mirroring on RedHat 8.0	Tony Lawrence	2002 11
Basic Scripting	Tony Lawrence	2001 02
Understanding Termcap and Terminfo	Tony Lawrence	1999 07
Adding a Hard Drive to Linux	Dirk Hart	2001 02
Unix and Linux startup scripts, Part 3	Anthony Lawrence	2009 12
Process scheduling	Tony Lawrence	2004 08
Using exclude with du	Tony Lawrence	2004 06
Take Control of iPad Networking & Security Apple Mail in Leopard Apple Mail in Panther
How and where to start writing first Shell Script in UNIX Part 2	Rakesh Awasthi	2004 08
Vi Primer	Tony Lawrence	1997
What does a leading colon (:) mean in a script?	Anthony Lawrence	2010 03
Freeing disk space with >	Anthony Lawrence	2009 11
Troubleshooting failed email	Anthony Lawrence	2009 08
Mac OS X Invisible and Locked Files	Anthony Lawrence	2008 03
Using sh -c with find	Anthony Lawrence	2007 01
Sendmail	Tony Lawrence	2002 04
Adding Memory	Anthony Lawrence	2007 10
Network Time Protocol - get atomic clock's precision from the Internet	Girish Venkatachalam	2009 09
grep in depth	Anthony Lawrence	2006 02
Loglevel (configuring syslog)	Tony Lawrence	2005 04
Understanding Kill	Tony Lawrence	2003 11
Ding, dong, the Cron is dead	Anthony Lawrence	2008 01
Perl Reporting	Anthony Lawrence	2008 03
Basic (very basic) TCP/IP	Anthony Lawrence	2009 06
Why use that primitive Vi?	Anthony Lawrence	2008 05
Caches	Tony Lawrence	2003 09
Understanding SCSI	Tony Lawrence	1999 03
X hotkeys with xbindkeys	Girish Venkatachalam	2009 09
Controlling Firefox Headers and Footers	Anthony Lawrence	2007 12
How and where to start writing first UNIX Shell Script	Rakesh Awasthi	2004 08
Understanding RAID	Tony Lawrence	1999 03
Understanding Threads	Tony Lawrence	2003 10
Why would I even want a computer?	Anthony Lawrence	2010 04
Users & Accounts in Leopard Users & Accounts in Panther Users & Accounts in Tiger
Some fun tools in the UNIX ecosystem	Girish Venkatachalam	2009 08
A refreshing web programming tutorial	Girish Venkatachalam	2009 08
Creating screencast video tutorials for the web	Girish Venkatachalam	2009 08			2012/07/06 15:33 TonyLawrence
What is p2p?	Girish Venkatachalam	2009 08
Fear of fsck	Anthony Lawrence	2009 06			2011/06/02 19:10 KenPorter
Windows Performance Boosts	Anthony Lawrence	2009 04
Breaking out of a script	Anthony Lawrence	2009 03
Zoom in	Anthony Lawrence	2008 09
Email Basics	Anthony Lawrence	2008 08
Bash Brace Expansion	Anthony Lawrence	2008 04
Cables and switches basics	Anthony Lawrence	2008 04
How do you do X in Unix (Linux,Solaris..)?	Anthony Lawrence	2008 03
But I'm not a programmer!	Anthony Lawrence	2007 12
Random errors in Perl	Anthony Lawrence	2007 12
Background tasks - Why?	Anthony Lawrence	2007 01
Some common email problems	Anthony Lawrence	2006 12
Posting to Usenet Groups	Anthony Lawrence	2006 11
Hardening your perimeter	Michael Desrosiers	2006 11
Understanding Microsummaries	Anthony Lawrence	2006 10
Understanding Microformats	Anthony Lawrence	2006 10
Javascript - The Definitive Guide	Anthony Lawrence	2006 09
Linux pinfo	Anthony Lawrence	2006 07
Fallure to resolve	Anthony Lawrence	2006 04
Undoing bad archives	Tony Lawrence	2005 10
But it doesn't use telnet!	Tony Lawrence	2005 09
Permissions in Tiger Podcasting on the Mac Recording with GarageBand '06
The network is always at risk	Tony Lawrence	2005 07
loadkeys, dumpkeys	Tony Lawrence	2005 05
PATH, command	Tony Lawrence	2005 04
pointer: Tech Words the Day	Tony Lawrence	2005 02
IBM: Linux Desktop Migration RedBook	Bruce Garlock	2004 12
Why are in-addr.arpa addresses backwards?	Tony Lawrence	2004 12
PAM: Tech Words the Day	Tony Lawrence	2004 11
I don't know Unix	Tony Lawrence	2004 08			2012/06/15 07:32 TonyLawrence
Network Time Protocol	Tony Lawrence	2004 08
What is Tabbed Browsing ?	Tony Lawrence	2004 07
Understanding Web Forms	Tony Lawrence	2003 12
Specialty Football Website (place kicking techniques)	Tony Lawrence	2003 11
Data Security: Backups are the Key to Protecting your Data and your Business	Bob Mahood	2003 10
XML	Tony Lawrence	2003 10
Intrusion Detection Systems	Tony Lawrence	2003 09
RSS Syndication Feeds and Why Do I Care?	Tony Lawrence	2003 08
Network Neighborhood, Visionfs, Samba Authentication and all that	Tony Lawrence	2003 05
Connecting to the Internet	Tony Lawrence	2001 06
Hard Disks	Tony Lawrence	2001 02
Basics	Tony Lawrence	2001 01
Installing a Small Office Network	Tony Lawrence	1998 03
SCO_OSR5 Boot Up Messages	Tony Lawrence	1998
How to suppress ping output	Tony Lawrence	1997-2004
What does 'everything is a file' really mean?	Tony Lawrence	1997-2004
Understanding x-flow	(various authors)	1997-2004
Recording with GarageBand '09 Running Windows on a Mac, Fourth Edition Safari 4
Scripting rsync	(various authors)	1997-2004
md5sum collisions	(various authors)	1997-2004
Misunderstanding umask	(various authors)	1997-2004

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