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

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2answers
118 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 ...
7
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1answer
94 views

Why does 8250 UART driver not wake up TTY if more than 256 characters are pending?

What is the motivation of this if-condition in void serial8250_tx_chars(struct uart_8250_port *up)? if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); It has been ...
1
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1answer
28 views

Behold System V; what about systems I-IV?

System V (by AT&T) is the ancestral Unix, and I have used it. But I have never read or heard anything about systems I-IV, other than they existed once upon a time in the dim past. How effective ...
1
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1answer
120 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 ...
2
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0answers
44 views

put string to commandline

I am making a bashfunction that show a menu binded to pgdown to browse through a a window which list my history (like 4dos/4nt etcetera). I have made so one line is always highlighted. $pos is ...
2
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0answers
39 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
41 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 ...
1
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0answers
26 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 ...
1
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0answers
43 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 ...
1
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0answers
116 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
69 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
22 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" ...