А знаете ли вы, что в Bash есть особая переменная "$_" ? Из описания можно узнать, что в переменную "$_" помещается последний аргумент последней команды.
Что-то знакомое? Конечно, в Python есть примерно тоже самое.
Мы знаем, что дата первого релиза Bash (8 июня 1989) несколько раньше чем первый релиз Python (20 февраля 1991). Если учесть, что по задумке автора Python это агрегация самых успешных практик отовсюду, можно ли сказать что именно эта фишка к нему пришла из Bash? Ни подтверждения ни опровержения я пока не нашел.
Давайте просто считать это совпадением 😉
А как это может быть полезно в Bash?
Приведу простой пример, который оценят те, кто часто работает в терминале.
Допустим, нам надо создать директорию и зайти в неё. Что обычно делаем?
:~$ mkdir foldername
:~$ cd foldername
:~/foldername$
Как это сделать в одну команду?
:~$ mkdir foldername && cd foldername
:~/foldername$
Уже лучше, но хочется короче, без повторов. Вот тут и пригодится наша переменная. Напомню, что в неё сохраняется последний аргумент предыдущей команды.
:~$ mkdir foldername && cd $_
:~/foldername$
_________________
PS.
Символы "&&"" разделяют команды и означают, что требуется выполнить вторую команду только если первая завершилась успешно.
#linux#tricks
📰 New AgingFly malware used in attacks on Ukraine govt, hospitals
A new malware family named 'AgingFly' has been identified in attacks against local governments and hospitals that steal authentication data from Chromium-based browsers and WhatsApp messenger.
🔗 Source: https://www.bleepingcomputer.com/news/security/new-agingfly-malware-used-in-attacks-on-ukraine-govt-hospitals/
#chromium
📰 Chromium on MediaTek: From testing to real-world performance on Genio 700 & 720
A deep dive on the current status of Chromium enablement on MediaTek Genio SoCs, including what the numbers look like when MediaTek’s hardware codecs are driven by Chromium’s V4L2 paths.
🔗 Source: https://www.collabora.com/news-and-blog/news-and-events/chromium-hardware-codecs-on-mediatek-genio-700-and-720-from-test-plans-to-real‑world-performance.html
#chromium
Google is throwing #Chromium browser under the bus, as it is removing the Sync support from it and removing the API keys which it gave to Linux distributions.
https://hackaday.com/2021/01/26/whats-the-deal-with-chromium-on-linux-google-at-odds-with-package-maintainers/
📰Bork in Prague: SUSE's keynote gods demand their tribute
Linux vendor touts European independence while rate limits, Chromium popups, and cold sparks steal the show BORK!BORK!BORK! The keynote gods are a fickle bunch, as SUSE discovered at its annual shindig in Prague. What should have been a slick edge demo instead served up error pages to unsuspecting attendees, while keynote presentations attracted some unwelcome visitors.…
🔗 Source: https://go.theregister.com/feed/www.theregister.com/2026/04/29/never_anger_the_keynote_demo/
#chromium#linux
📰Raspberry Pi owners are missing this one free tweak that changes everything
A couple of years ago, when I was working on my Raspberry Pi 5, I noticed that it was very slow. I googled possible reasons, and the main one was its lack of RAM. It has 4 gigs of RAM, but I noticed that running multiple Chromium tabs made it run at a snail's pace. So, I looked for ways to increase the RAM. Given that I was using an SD Card as a hard drive, using a swap file wasn't really an option. However, I found a program called ZRAM and...
🔗 Source: https://www.xda-developers.com/free-tweak-old-pi-changes-everything/
#chromium#raspberry
📰 Latest Raspberry Pi OS Release Disables Passwordless sudo by Default
Raspberry Pi OS 2026-04-13 is now available for download with a much-improved Control Center app, passwordless sudo disabled by default, Chromium enhancements, and many other changes.
🔗 Source: https://9to5linux.com/latest-raspberry-pi-os-release-disables-passwordless-sudo-by-default
#chromium#raspberry
📰 Latest Raspberry Pi OS Release Disables Passwordless sudo by Default
Raspberry Pi OS 2026-04-13 is now available for download with a much-improved Control Center app, passwordless sudo disabled by default, Chromium enhancements, and many other changes.
🔗 Source: https://9to5linux.com/latest-raspberry-pi-os-release-disables-passwordless-sudo-by-default
#chromium#raspberry
📰HarfBuzz 14.0 Released With New GPU Accelerated Text Rendering Library
HarfBuzz is the open-source text shaping engine originally born out of the FreeType project and now widely-used by GNOME, KDE, Java, Flutter, Godot, Chromium, LibreOffice, and countless other applications. HarfBuzz 14.0 released today and making this release quite exciting is introducing a GPU-accelerated text rendering library...
🔗 Source: https://www.phoronix.com/news/HarfBuzz-14.0-Released
#kde#opensource#chromium#gnome