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Изворен канал @pythonotes · Post #169 · 21 окт.

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

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DruschbaFM - English

@druschbaFm_en · Post #52600 · 27.03.2025 г., 08:02

⚡️ 🇷🇺 🇺🇦⚔️ Ukraine Fronts on the Morning of 27 March⚡️ 🔴#Sumy Direction: 🔴In #Sudzha Sector, to the west on Ukrainian soil, at #Vladimirovka, there is reportedly fighting (still unconfirmed without further proof; 1st blue arrow on map). 🟡 For #Veselovka, the battle is ongoing (1st black arrow). 🟡 In #Zhuravka as well. 🟡 In #Basovka, the AFU counterattacked, the battle likely shifted to its northern part. 🟡#Novenkoye, is Russian controlled (1st red arrow). 🟡 In #Kursk region, the RFAF entry into #Gogolevka has been confirmed. Reportedly, the fighting has already shifted to its southern part (4th black arrow). 🟡 In the area of the 'Sudza Gas Transmission Point' and the nearby border checkpoint, the fighting continues (5th black arrow). 🟡#Melovoy is under Russian control (2nd red arrow). To its west, Russian mobile groups continued to advance towards #Oleshnya (confirmed). 🟡#Oleshnya is still under AFU control. 🟡 At #Guyevo, there are heavy battles on its approaches. Reportedly, the RFAF have entered its northern part. 🗺 Map 2 🟡#Gornal remains under save AFU control. 🔴In #KrasnayaYaruga Sector, the AFU assaulted unsuccessfully in its northern part from #Popovka/#Demidovka up to #Grafovka, suffering heavy losses (6th/7th black & 3rd red arrow). 🎬 Video 🟡 At #Prilesye, lull. 🗺 All on Map 1 📌Reportedly, the AFU command has concentrated a strike group of over 4,000 militants in the vicinity of the border. Thus, further actions are to be expected. 🔴 In #Kharkov Direction, positional battles. 🔴#Svatovo Front: 🔴 In #Kupyansk and #Borovaya Sectors, positional battles without major changes. 🔴In #Liman Sector, there was a fog of war. Reportedly, the RFAF took #Novolyubovka and the day before yesterday #Mirnoye (the takeover of #Yampolovka to its east was never confirmed or proven) and they advanced sooth of #Kolodezi by 2 km. 🔴In #Seversk Sector, positional battles at #Belogorovka (#LPR) and #Verkhnekamenskoye. 🔴#ChasovYar Direction: 🔴In #ChasovYar Sector, positional fighting in the city's southern part and to the south towards #Stupochki continues. 🔴In #Toretsk Sector, the RFAF attacks north of the city in the area of the 'Seversky Donets-Donbass Canal'. 🟡 In #Toretsk itself, the battles are taking place north of 'Toretskaya Mine,' north and northwest of 'Avangard Stadium' and in southern 'Zabalka Microdistrict'. 🔴#Pokrovsk Direction: 🔴 On the right Flank, far to the east, Russian troops attack in the area of #Aleksandropol. 🔴 South of the City, heavy battles did not result in major changes. 🔴 On the left Flank, the RFAF are approaching #Novoaleksandrovka. 🔴#Komar Direction: 🔴In #Konstantinopol Sector, fights for #Konstantinopol and at #Razliv. 🔴 In #Komar Sector, Russian troops advanced up to 400 m in #VolnoyePole and took up new positions in the central part of the settlement, taking heavy losses. 🔴#Zaporozhye Direction: 🔴In #Orekhov Section, positional battles are taking place In the area of ​#​MalayaTokmachka - #Rabotino. Further west, the AFU unsuccessfully counterattacked. 🟡 In #Shcherbaki, the RFAF took reportedly the southern part beyond the motorway. 🟡 At #MalyeShcherbakito the west, the battle continues. The village is still not completely under RFAF control. 🟡 In #Stepovoye, further west, fighting in the large village boundaries without major changes. 🟡 In #Lobkovoye, the the RFAF advanced slightly northwards (unconfirmed). 🟡#Pyatikhatki remains under RFAF control. 🔴 In #Kherson Direction, several villages came under fire from the AFU. 💥#OldRussia: 🔵In #Belgorod Region, Channel One journalist Anna Prokofiyeva was killed. 💥#RestUkraine: 🔵 The RFAF struck massively #Sumy, #Kharkov and #Dnepropetrovsk. ⚠️ The Term 'Reportedly' always means that it is unconfirmed! 🎞 Video Source 🗺 Maps @olegtsarov; @divgen 📋 Sources: CC; Tsarov; ⚡️2M; 🇺🇦Fiend;😼Kotenok 🕰As of 27 Mar 2025; 06:38 GMT+3;📃26 Mar 📱 Join GLOBAL DEPTH to boost your TG Feed 💬Join Military Chat for Comments & Discussions 🇺🇦On Ukraine Observer you will find your daily independent Ukraine War Battle Update