The history of Unix systems and their main components. Please DO NOT USE this tag for shell-related questions; use [tag:command-history] instead.

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1answer
227 views

SSH Authentication Mechanism

Doing a personal research project and I'm wondering: Why does SSH do its own mechanism negotiation rather than use SASL? At first I thought it might be to ensure confidentiality of the whole session, ...
2
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1answer
356 views

How do you play this old unix game?

I recently tried the simh emulator, pdp11. The disk image I used can be found on the internet, and instructions for booting it are here. Presumably it belonged to Dennis Ritchie, as the username is ...
2
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1answer
62 views

Why do GNU tools use non-matching ` and ' to quote errors?

GNU tools often output error and warning messages with parts of the line (e.g. filenames, syntax errors, invalid dates, etc) quoted with non-matching quotes: ` and ' e.g. From the GNU coreutils FAQ: ...
2
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1answer
83 views

Why is vdir still around?

After installing Debian 8, I started poking around /bin (as I'm always wont to do), and I noticed that ls and vdir share, not only the same manpage (except for the whatis line), but the exact same ...
2
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1answer
594 views

Is the Linux implementation of the system configuration “variable” ARG_MAX different from other system variables and is it POSIX compliant?

In the shell, as explained in this this Q&A in the context of expansion, depending on the system, the maximum length of a command's argument is initially constrained by the kernel setup. The ...
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38 views

What is the background of the program segmentation?

Each program is separated into several segments like: code segment data segment stack segment heap segment But who was responsible for that progression? The compiler and linker has to support that ...
2
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0answers
38 views

Where does the name of i3 (the WM) come from?

I was thinking about this, so I searched the i3 website, but did not find anything. I was alarmed by the thought, that the name was ie (internet explorer) in leetspeak. It might also be a weird ...
2
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0answers
149 views

Why Unix is sometimes referred as UN*X or *nix? [duplicate]

Possible Duplicate: Why is there a * When There is Mention of Unix Throughout the Internet? Why Unix is sometimes referred as UN*X or *nix? Asterisk usually means that some letters are ...
1
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1answer
305 views

Why has '-' been chosen as the backup file suffix for certain Unix system files?

Example: /etc/group-, /etc/passwd- Is there any motivation behind choice of the - sign (e.g. easier to recognize, process, etc.)?
1
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1answer
452 views

Does CentOS fall into System V family? How is it considered to be while comparing with Unix System V family?

CentOS is "derived entirely from the Red Hat Enterprise Linux (RHEL) distribution" (more here). Does it fall into any UNIX System V family? Such as PDP-11 or etc? If not, where does CentOS stands ...
1
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1answer
267 views

How can I find out the IP address from which a user logged in?

We have two RHEL 6.4 64-bit boxes in our environment. They are accessed remotely via putty. The password of user ABC on one RHEL box is shared by multiple users. User ABC logged into server from ...
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1answer
41 views

Zeller's congruence and cal command

According to Zeller's Congruence, the day of 29 Feb, 1600 is Tuesday. However, the cal command shows it as Friday.Is there a bug in cal's code or a limit on the range of years which Zeller's ...
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2answers
99 views

Why are user account on remote server called shell account

Why are user accounts on a remote server called shell account , remote account sounds like a more intuitive name what is the reason behind this very unintuitive name ???
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2answers
250 views

Is the GNU Coreutils copied from Unix?

Linux itself is not a copy of Unix because one can argue it simply conforms to the POSIX standard. However, how about the GNU Coreutils which contains utilities like ls, cd and rm, etc...? Is there ...
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2answers
172 views

What was the paid only period in history of SuSE?

Around version 7.0 (? just guessing) SuSE became paid only distribution (i.e. you had to pay to get the copy), after several releases SuSE came back to free + paid model. Now -- the most important to ...
1
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1answer
163 views

Use case for /usr/bin/lessecho

I can not come up with an example of how I could/would use lessecho. The description in the man page is fairly straight forward but is not helping me come up with a use case: DESCRIPTION ...
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1answer
47 views

Relation between emacs and bash terminal shortcuts [closed]

I would like to know what is the relation between emacs and bash terminal shortcuts.
1
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1answer
117 views

Where did the default GTK2 theme (raleigh) theme come from?

Who made the theme? When was the theme made? Was it made originally for a specific distro? Does the theme have anything to do with the city of Raleigh?
1
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1answer
246 views

Who was James Farber and why was he important to Unix?

I've been reading papers on Plan 9 from Bell Labs. In the paper on why Plan 9's not dead yet, around page 18, the author mentions "Farber". Googling reveals this to be a James Farber, but all I can ...
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1answer
129 views

view history of opened programs Manjaro Linux

Is there a way to view a log, or history of all programs opened in Manjaro Linux?
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0answers
21 views

Etymology of “descriptor” in “file descriptor”

The choice of the word descriptor has always struct me as odd. "Index" or "id" seem like more obvious alternatives. Is there a known rationale for the choosing the word "descriptor"? I guess ...
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0answers
41 views

What are the oldest irc clients I can still use on linux ?

I have a weakness for nostalgia and some interest in Unix history, therefore I would like to know which are the oldest still usable irc clients that can be run on Linux. In this context I value age ...
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0answers
91 views

how to copy files using TTY teminal from one pc to another connected through same home network

In my academic lab my friend copied files from one computer to another that were serially connected using the tty4. How could he have done this if there was no internet and he didn't install any new ...
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0answers
60 views

Is Cat-v.org an official subsidiary website of Plan 9 from Bell Labs?

I was wondering, since it seems to be one of the only websites where I can seemingly legally download historic Unix documents.
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0answers
24 views

history - bash, dash, zsh and .profile [duplicate]

For a long time I have been wondering about the existence of many shells in GNU/Linux. To make the question a bit focused I have used only three shells - bash, dash and zsh. From wikipedia articles ...
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0answers
59 views

Where does backtick and single quote come from when denoting commands e.g. `prog'? [duplicate]

When referring to commands in tutorials, man pages, and articles I see authors use the backtick and single quote in this way: `./configure' `make' I believe I have seen gcc denote points of failure ...
1
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1answer
420 views

What is the difference between UNIX and UNIX Like? [duplicate]

Possible Duplicate: Is Linux a Unix? I have heard Linux was not UNIX (I guess it still isn't) but that it was UNIX Like. Some people will just say "Linux is UNIX" or say "Linux, Solaris, ...
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1answer
97 views

Why does xargs -I imply -L 1

I've seen Why does 'find -exec cmd {} +' need to end in '{} +'? which explains why {} + has to be at the end of the -exec cmd(*), and now I'd like to know why GNU xargs reverts to one ...
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2answers
797 views

Where does the word GNU come from?

GNU is a Unix-like operating system. That means it is a collection of many programs: applications, libraries, developer tools, even games. The development of GNU, started in January 1984, is known ...
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4answers
122 views

How to run Unix?

I always wanted to try Unix but I can't seem to find an ISO file or somewhere to buy it. Is Unix published for the whole wide world to use or is it a special OS only for high-class servers, mainframes ...
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3answers
2k views

Who wrote the “Linux kernel” (Linus Torvalds and his team)?

Who are the authors of the pure Linux kernel from scratch, which was integrated with GNU tools and formed the full GNU/Linux Operating system in the 1990s? I have read some wiki articles but I haven't ...
0
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2answers
92 views

what are considered old and powerfull commands? [closed]

I came across the terms awk and sed, awk goes once through all lines and performs a task whenever a line meets a certain condition, sed can manipulate a stream of input before it goes further to the ...
0
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1answer
69 views

What can be considered as operating system? [closed]

I am talking about GNU/Linux but not about GNU or Linux! I know that Kernel is the core component in operating system but I want to know what defines the "operating system" (What can be considered as ...
0
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1answer
74 views

deleting all occurences of a given command from history [closed]

I am trying to delete a specific entry in history. Clarification--by that I mean deleting all occurences containing a given command/or text. I used Aliteralmind's hxf script: :< Examples hxf ...
0
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1answer
116 views

Did Linux have a bug where reading /dev/null would crash the system?

About 10 years ago I've been told by someone that for years Linux used to crash whenever you tried to read /dev/null (ie. cat /dev/null). Is this actually true? Did such a bug exist? And if it did, ...
0
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1answer
164 views

History of WINE

I will be doing a talk about WINE and how it has changed the situation for new Linux users that come from Windows and how it has matured from the start till know. I have much info already about it and ...
0
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1answer
53 views

important changes of linux 3.1 to 3.17 [closed]

I'm doing school research project for Linux operating system and I need help with summary of version 3.1 to 3.17. The problem is, I know very little about Linux and detailed technological terms used ...
0
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1answer
81 views

Syntactic differences in cp -r and how to overcome them

Let's say we are in a blank directory. Then, the following commands: mkdir dir1 cp -r dir1 dir2 Yield two (blank) directories, dir1 and dir2, where dir2 has been created as a copy of dir1. ...
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0answers
17 views

Save history to separate file with time-stamp and who did the action

I'm looking for a solution to capture all Linux commands to some file, there are many solutions but I prefer to capture all History to some file. I want it to include : "time-stamp" "Server-name" ...
0
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1answer
82 views

What really is bash? (or any linux shell) [duplicate]

I understand bash as a window where I can type commands to linux. Reading the wikipedia, I've learned that there were various shell applications throughout the history. First, I understood bash as ...
0
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1answer
422 views

What does “dd” stand for? [duplicate]

What does dd stand for? I've always referred to it colloquially as "Disk Destroyer", but what are the "official" words that make up the acronym/command? According to this link and this link it could ...
0
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2answers
114 views

When was the threading implemented in unix?

Which is the first Unix version or Linux version which implemented threads. And in which version bound and unbound threads were implemented? I know that in current Linux version threads are unbound by ...
-1
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1answer
121 views

Who was the original author of logrotate and what year was it written?

The question started as an internal team debate. But we realized we couldn't find any information about when the original version of logrotate was authored and who wrote it.Do you have idea?
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3answers
748 views

Why is “shebang” called “shebang”?

Does "shebang" mean "bang she"? Why not "hebang" as "bang he"?