#UNIX

Sikorski Arkadiusz vel ArakuSdefault consoledef for IBM AIX Unix<a href="https://defcon.social/tags/ALTTTY" class="mention hashtag" rel="nofollow noopener" target="_blank">#ALTTTY</a>: # connection=rs232 # location=00-00-S2-00 # speed=9600 # bpc=8 # stops=1 # flow_disp=xon # parity=none # term=ibm3151"AIX (pronounced /ˌeɪ.aɪ.ˈɛks/ ay-eye-EKS[5]) is a series of proprietary Unix operating systems developed and sold by IBM since 1986. The name stands for "Advanced Interactive eXecutive". AIX (pronounced /ˌeɪ.aɪ.ˈɛks/ ay-eye-EKS[5]) is a series of proprietary Unix operating systems developed and sold by IBM since 1986. The name stands for "Advanced Interactive eXecutive". "* font : <a href="https://www.ibm.com/plex/" rel="nofollow noopener" translate="no" target="_blank">https://www.ibm.com/plex/</a> , <a href="https://github.com/IBM/plex" rel="nofollow noopener" translate="no" target="_blank">https://github.com/IBM/plex</a> <a href="https://defcon.social/tags/aix" class="mention hashtag" rel="nofollow noopener" target="_blank">#aix</a> <a href="https://defcon.social/tags/ibm" class="mention hashtag" rel="nofollow noopener" target="_blank">#ibm</a> <a href="https://defcon.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://defcon.social/tags/history" class="mention hashtag" rel="nofollow noopener" target="_blank">#history</a> <a href="https://defcon.social/tags/technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#technology</a> <a href="https://defcon.social/tags/os" class="mention hashtag" rel="nofollow noopener" target="_blank">#os</a>

Arkadiusz Sikorskidefault consoledef for IBM AIX Unix<a href="https://oldbytes.space/tags/ALTTTY" class="mention hashtag" rel="nofollow noopener" target="_blank">#ALTTTY</a>:connection=rs232location=00-00-S2-00speed=9600bpc=8stops=1flow_disp=xonparity=noneterm=ibm3151"AIX (pronounced /ˌeɪ.aɪ.ˈɛks/ ay-eye-EKS[5]) is a series of proprietary Unix operating systems developed and sold by IBM since 1986. The name stands for "Advanced Interactive eXecutive". AIX (pronounced /ˌeɪ.aɪ.ˈɛks/ ay-eye-EKS[5]) is a series of proprietary Unix operating systems developed and sold by IBM since 1986. The name stands for "Advanced Interactive eXecutive". "<ul><li>font : <a href="https://www.ibm.com/plex/" rel="nofollow noopener" translate="no" target="_blank">https://www.ibm.com/plex/</a> , <a href="https://github.com/IBM/plex" rel="nofollow noopener" translate="no" target="_blank">https://github.com/IBM/plex</a> </li></ul><a href="https://oldbytes.space/tags/aix" class="mention hashtag" rel="nofollow noopener" target="_blank">#aix</a> <a href="https://oldbytes.space/tags/ibm" class="mention hashtag" rel="nofollow noopener" target="_blank">#ibm</a> <a href="https://oldbytes.space/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://oldbytes.space/tags/history" class="mention hashtag" rel="nofollow noopener" target="_blank">#history</a> <a href="https://oldbytes.space/tags/technology" class="mention hashtag" rel="nofollow noopener" target="_blank">#technology</a> <a href="https://oldbytes.space/tags/os" class="mention hashtag" rel="nofollow noopener" target="_blank">#os</a>

vermadenLatest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟬𝟵/𝟮𝟮 (Valuable News - 2025/09/22) available. <a href="https://vermaden.wordpress.com/2025/09/22/valuable-news-2025-09-22/" rel="nofollow noopener" translate="no" target="_blank">https://vermaden.wordpress.com/2025/09/22/valuable-news-2025-09-22/</a>Past releases: <a href="https://vermaden.wordpress.com/news/" rel="nofollow noopener" translate="no" target="_blank">https://vermaden.wordpress.com/news/</a><a href="https://mastodon.bsd.cafe/tags/verblog" class="mention hashtag" rel="nofollow noopener" target="_blank">#verblog</a> <a href="https://mastodon.bsd.cafe/tags/vernews" class="mention hashtag" rel="nofollow noopener" target="_blank">#vernews</a> <a href="https://mastodon.bsd.cafe/tags/news" class="mention hashtag" rel="nofollow noopener" target="_blank">#news</a> <a href="https://mastodon.bsd.cafe/tags/bsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#bsd</a> <a href="https://mastodon.bsd.cafe/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsd</a> <a href="https://mastodon.bsd.cafe/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.bsd.cafe/tags/netbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#netbsd</a> <a href="https://mastodon.bsd.cafe/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://mastodon.bsd.cafe/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mastodon.bsd.cafe/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#zfs</a> <a href="https://mastodon.bsd.cafe/tags/opnsense" class="mention hashtag" rel="nofollow noopener" target="_blank">#opnsense</a> <a href="https://mastodon.bsd.cafe/tags/ghostbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#ghostbsd</a> <a href="https://mastodon.bsd.cafe/tags/solaris" class="mention hashtag" rel="nofollow noopener" target="_blank">#solaris</a> <a href="https://mastodon.bsd.cafe/tags/vermadenday" class="mention hashtag" rel="nofollow noopener" target="_blank">#vermadenday</a>

Jan SchaumannAdvanced Programming in the UNIX EnvironmentWeek 3: UIDs introIn this video lecture, we'll learn a little bit more about file ownership and the user IDs of a process (real, effective, saved) by looking at the seteuid(2) and setuid(2) system calls and experimenting with setting the setuid bits and observe the file access we gain.<a href="https://youtu.be/YlcF3ncTQpo" rel="nofollow noopener" translate="no" target="_blank">https://youtu.be/YlcF3ncTQpo</a><a href="https://mstdn.social/tags/apue" class="mention hashtag" rel="nofollow noopener" target="_blank">#apue</a> <a href="https://mstdn.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mstdn.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Bi—zaar3D Pong is a one- or two-player, three dimensional sports game, based on the first arcade game ever made, "Pong" from Atari. Each player controls their "paddle" with the mouse, and tries to score by bouncing a ball into the other player's goal (just behind the paddle).3D Pong is a vector-based graphics X-Window game for Unix<a href="http://www.newbreedsoftware.com/3dpong/index2.php3" rel="nofollow noopener" translate="no" target="_blank">http://www.newbreedsoftware.com/3dpong/index2.php3</a><a href="https://todon.eu/tags/games" class="mention hashtag" rel="nofollow noopener" target="_blank">#games</a> <a href="https://todon.eu/tags/Unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#Unix</a> <a href="https://todon.eu/tags/Atari" class="mention hashtag" rel="nofollow noopener" target="_blank">#Atari</a>

Jan SchaumannAdvanced Programming in the UNIX EnvironmentWeek 3: stat(2) introIn this video lecture, we meet our new best friend, the 'struct stat'. We'll cover the stat(2) system calls and begin discussing each of the fields in the struct, often by example of the ls(1) and stat(1) commands. In this way, we begin learning more about how the Unix File System is implemented.<a href="https://youtu.be/veFwXrEHPsk" rel="nofollow noopener" translate="no" target="_blank">https://youtu.be/veFwXrEHPsk</a><a href="https://mstdn.social/tags/apue" class="mention hashtag" rel="nofollow noopener" target="_blank">#apue</a> <a href="https://mstdn.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mstdn.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Blake PattersonWhat time is it?<a href="https://oldbytes.space/tags/AppleWatch" class="mention hashtag" rel="nofollow noopener" target="_blank">#AppleWatch</a> <a href="https://oldbytes.space/tags/IRIX" class="mention hashtag" rel="nofollow noopener" target="_blank">#IRIX</a> <a href="https://oldbytes.space/tags/UNIX" class="mention hashtag" rel="nofollow noopener" target="_blank">#UNIX</a> <a href="https://oldbytes.space/tags/SGI" class="mention hashtag" rel="nofollow noopener" target="_blank">#SGI</a> <a href="https://oldbytes.space/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#vintagecomputing</a> <a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#retrocomputing</a> <a href="https://oldbytes.space/tags/OS" class="mention hashtag" rel="nofollow noopener" target="_blank">#OS</a> <a href="https://oldbytes.space/tags/watchfaces" class="mention hashtag" rel="nofollow noopener" target="_blank">#watchfaces</a> <a href="https://oldbytes.space/tags/photo" class="mention hashtag" rel="nofollow noopener" target="_blank">#photo</a> <a href="https://oldbytes.space/tags/Apple" class="mention hashtag" rel="nofollow noopener" target="_blank">#Apple</a> <a href="https://oldbytes.space/tags/watchos" class="mention hashtag" rel="nofollow noopener" target="_blank">#watchos</a> <a href="https://oldbytes.space/tags/watches" class="mention hashtag" rel="nofollow noopener" target="_blank">#watches</a>

KeaganMy company has these two books as part of an internal book share/library thing. Either one worth a read?<a href="https://infosec.exchange/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://infosec.exchange/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a>

std::mem::justsoupFor Linux distros that have a suffix attached to their name referencing Unix, which one do you think looks the best?<a href="https://mstdn.social/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://mstdn.social/tags/Unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#Unix</a> <a href="https://mstdn.social/tags/UnixLike" class="mention hashtag" rel="nofollow noopener" target="_blank">#UnixLike</a> <a href="https://mstdn.social/tags/Poll" class="mention hashtag" rel="nofollow noopener" target="_blank">#Poll</a>

Jan SchaumannAdvanced Programming in the UNIX EnvironmentA we're starting to regularly write C code now, it might be good to share a few useful links:How to C (as of 2016) <a href="https://matt.sh/howto-c" rel="nofollow noopener" translate="no" target="_blank">https://matt.sh/howto-c</a>A critique of "How to C" by Matt: <a href="https://github.com/Keith-S-Thompson/how-to-c-response/blob/master/README.md" rel="nofollow noopener" translate="no" target="_blank">https://github.com/Keith-S-Thompson/how-to-c-response/blob/master/README.md</a>and, even though you kids don't have any idea what Usenet is (now get off my lawn), the comp.lang.c FAQ: <a href="https://c-faq.com/" rel="nofollow noopener" translate="no" target="_blank">https://c-faq.com/</a><a href="https://mstdn.social/tags/apue" class="mention hashtag" rel="nofollow noopener" target="_blank">#apue</a> <a href="https://mstdn.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a> <a href="https://mstdn.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a>

nixCraft 🐧The O2, an entry level Unix workstation, was introduced in the mid 90s and came with a single MIPS CPU. Here, we see some baby Octanes, haha! It officially ran on IRIX UNix OS but also supported the Linux and BSD families of operating systems<a href="https://en.wikipedia.org/wiki/SGI_O2" rel="nofollow noopener" translate="no" target="_blank">https://en.wikipedia.org/wiki/SGI_O2</a><a href="https://mastodon.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mastodon.social/tags/history" class="mention hashtag" rel="nofollow noopener" target="_blank">#history</a>

Mark DominusIt seems that I canfor i in \ a \ b \ ; do ...; donebut I can't for i in \ a \ <a href="https://mathstodon.xyz/tags/this" class="mention hashtag" rel="nofollow noopener" target="_blank">#this</a> b \ <a href="https://mathstodon.xyz/tags/that" class="mention hashtag" rel="nofollow noopener" target="_blank">#that</a> ; do ...; doneIs there a workaround for this?<a href="https://mathstodon.xyz/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mathstodon.xyz/tags/ShellScripting" class="mention hashtag" rel="nofollow noopener" target="_blank">#ShellScripting</a>

jbz⚡ The idea of /usr/sbin has failed in practice | cks｢ programs were more or less shoved in /usr/sbin if developers thought they were relatively unlikely to be used by normal people. But 'relatively unlikely' is not 'never', and shortly after people got told to 'run traceroute' and got 'command not found' when they tried, /usr/sbin (probably) started appearing in $PATH ｣ <a href="https://utcc.utoronto.ca/~cks/space/blog/unix/UsrSbinFailedInPractice" rel="nofollow noopener" translate="no" target="_blank">https://utcc.utoronto.ca/~cks/space/blog/unix/UsrSbinFailedInPractice</a><a href="https://indieweb.social/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://indieweb.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://indieweb.social/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsd</a>

SDF.ORGThe SDF Plan 9 Boot Camp FALL 2025 registration is OPEN and begins in one week!<a href="https://sdf.org/plan9" rel="nofollow noopener" target="_blank">https://sdf.org/plan9</a>Plan 9 is newer than Linux and addresses limitations Linux preserved from UNIX.Come learn about the experimental Plan 9 operating system in a fun and friendly communal environment.<a href="https://mastodon.sdf.org/tags/plan9" class="mention hashtag" rel="nofollow noopener" target="_blank">#plan9</a> <a href="https://mastodon.sdf.org/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mastodon.sdf.org/tags/research" class="mention hashtag" rel="nofollow noopener" target="_blank">#research</a> <a href="https://mastodon.sdf.org/tags/hacking" class="mention hashtag" rel="nofollow noopener" target="_blank">#hacking</a> <a href="https://mastodon.sdf.org/tags/learning" class="mention hashtag" rel="nofollow noopener" target="_blank">#learning</a>

OSNewsThe idea of /usr/sbin has failed in practiceIt may be arcane knowledge to most users of UNIX-like systems today, but there is supposed to be a difference between /usr/bin and /usr/sbin; the latter is supposed to be for "system binaries", not needed by most normal users. The Filesystem Hierarchy Standard states that sbin directories are intended to contain "utilities used for system administrati<a href="https://www.osnews.com/story/143337/the-idea-of-usr-sbin-has-failed-in-practice/" rel="nofollow noopener" translate="no" target="_blank">https://www.osnews.com/story/143337/the-idea-of-usr-sbin-has-failed-in-practice/</a><a href="https://mstdn.social/tags/Unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#Unix</a>

vermadenLatest 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗡𝗲𝘄𝘀 - 𝟮𝟬𝟮𝟱/𝟬𝟵/𝟭𝟱 (Valuable News - 2025/09/15) available. <a href="https://vermaden.wordpress.com/2025/09/15/valuable-news-2025-09-15/" rel="nofollow noopener" translate="no" target="_blank">https://vermaden.wordpress.com/2025/09/15/valuable-news-2025-09-15/</a>Past releases: <a href="https://vermaden.wordpress.com/news/" rel="nofollow noopener" translate="no" target="_blank">https://vermaden.wordpress.com/news/</a><a href="https://mastodon.bsd.cafe/tags/verblog" class="mention hashtag" rel="nofollow noopener" target="_blank">#verblog</a> <a href="https://mastodon.bsd.cafe/tags/vernews" class="mention hashtag" rel="nofollow noopener" target="_blank">#vernews</a> <a href="https://mastodon.bsd.cafe/tags/news" class="mention hashtag" rel="nofollow noopener" target="_blank">#news</a> <a href="https://mastodon.bsd.cafe/tags/bsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#bsd</a> <a href="https://mastodon.bsd.cafe/tags/freebsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#freebsd</a> <a href="https://mastodon.bsd.cafe/tags/openbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#openbsd</a> <a href="https://mastodon.bsd.cafe/tags/netbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#netbsd</a> <a href="https://mastodon.bsd.cafe/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://mastodon.bsd.cafe/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mastodon.bsd.cafe/tags/zfs" class="mention hashtag" rel="nofollow noopener" target="_blank">#zfs</a> <a href="https://mastodon.bsd.cafe/tags/opnsense" class="mention hashtag" rel="nofollow noopener" target="_blank">#opnsense</a> <a href="https://mastodon.bsd.cafe/tags/ghostbsd" class="mention hashtag" rel="nofollow noopener" target="_blank">#ghostbsd</a> <a href="https://mastodon.bsd.cafe/tags/solaris" class="mention hashtag" rel="nofollow noopener" target="_blank">#solaris</a> <a href="https://mastodon.bsd.cafe/tags/vermadenday" class="mention hashtag" rel="nofollow noopener" target="_blank">#vermadenday</a>

Jan SchaumannAdvanced Programming in the UNIX EnvironmentWeek 2: File SharingIn this final video lecture segment for our week 2 materials, we take a look at what it means when multiple processes access the same files and what the implications of that are on the syscalls we know. We conclude with a look at /dev/fd on different operating systems, including <a href="https://mstdn.social/tags/NetBSD" class="mention hashtag" rel="nofollow noopener" target="_blank">#NetBSD</a>, <a href="https://mstdn.social/tags/macOS" class="mention hashtag" rel="nofollow noopener" target="_blank">#macOS</a>, and <a href="https://mstdn.social/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a><a href="https://youtu.be/CAbUtc86ULw" rel="nofollow noopener" translate="no" target="_blank">https://youtu.be/CAbUtc86ULw</a><a href="https://mstdn.social/tags/apue" class="mention hashtag" rel="nofollow noopener" target="_blank">#apue</a> <a href="https://mstdn.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mstdn.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Jan SchaumannAdvanced Programming in the UNIX EnvironmentWeek 2: read(2)/write(2)/lseek(2)In this video lecture, we will go into the details of the read(2), write(2), and lseek(2). We'll also do a few weird things with file descriptors, and take a look at how we can ensure I/O efficiency when making these system calls.<a href="https://youtu.be/EUUPw8MOV_A" rel="nofollow noopener" translate="no" target="_blank">https://youtu.be/EUUPw8MOV_A</a><a href="https://mstdn.social/tags/apue" class="mention hashtag" rel="nofollow noopener" target="_blank">#apue</a> <a href="https://mstdn.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> <a href="https://mstdn.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

HP van BraamI'm designing a sort of "fantasy <a href="https://mastodon.tmm.cx/tags/UNIX" class="mention hashtag" rel="nofollow noopener" target="_blank">#UNIX</a> workstation" with parts available today in some sensible manner. 68020 based and an accelerated framebuffer for X.The design uses ASICs where possible, the "chipset" will be FPGA based (probably a combination of iCE40s and one big ECP5, it will have PCI.The goal is to support at least 2, maybe 4 68020 CPUs. Would you buy one for €300-500?No commitment! Just wondering where to go! The most expensive chips have a minimum order of 25.<a href="https://mastodon.tmm.cx/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#retrocomputing</a>

Rome0<a href="https://cyberplace.social/@GossiTheDog" class="u-url mention" rel="nofollow noopener" target="_blank">@GossiTheDog</a> For <a href="https://mastodon.social/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> and <a href="https://mastodon.social/tags/unix" class="mention hashtag" rel="nofollow noopener" target="_blank">#unix</a> !

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