Python + bash
Если вам часто требуется запускать shell команды из Python-кода, какой способ вы используете?
Самый низкоуровневый это функция os.system(), либо os.popen(). Рекомендованный способ это subprocess.call(). Но это всё еще достаточно неудобно.
Советую обратить своё внимание на очень крутую библиотеку sh.
Что она умеет?
🔸 удобный синтаксис вызова команд как функций
# os
import os
os.system("tar cvf demo.tar ~/")
# subprocess
import subprocess
subprocess.call(['tar', 'cvf', 'demo.tar', '~/'])
# sh
import sh
sh.tar('cvf', 'demo.tar', "~/")
🔸 простое создание функции-алиаса для длинной команды
fn = sh.lsof.bake('-i', '-P', '-n')
output = sh.grep(fn(), 'LISTEN')
в этом примере также задействован пайпинг
🔸 удобный вызов команд от sudo
with sh.contrib.sudo:
print(ls("/root"))
Такой запрос спросит пароль. Чтобы это работало нужно соответствующим способом настроить юзера.
А вот вариант с вводом пароля через код.
password = "secret"
sudo = sh.sudo.bake("-S", _in=password+"\n")
print(sudo.ls("/root"))
Это не все фишки. Больше интересных примеров смотрите в документации.
Специально для Windows💀 юзеров
#libs#linux
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As an engineer, I am fascinated by it all. As a human, I am horrified that we democratized violence on this scale.
A missile worth perhaps a million dollars can kill maybe 12 or 20 people. But for one million dollars, you can buy 10,000 drones, put four grenades on each, and they will kill 1,000 or even 2,000 people or destroy 200 tanks.
https://news.ycombinator.com/item?id=44168658
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The Commander-in-Chief knows exactly what he's doing 😤💪
#USNews#MiddleEast#warfare
@america
🌎 Ancient Greek fire, known as "Greek fire," was a weapon that could burn even on water. This flammable liquid, projected from tubes, terrified enemies at sea and kept its formula a closely guarded secret, lost to history. ✨
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👉subscribe Interesting Planet
📢 Ukraine's defense forces resort to using Leopard tanks as long-range artillery, failing to fulfill their intended purpose against Russia. The highly anticipated offensive has turned into a defensive strategy, with the giant tanks deployed along the front line. But will this change the course of the conflict? Meanwhile, Poland plans to provide Ukraine with additional armored firepower. The war continues... 💥#Ukraine#Russia#LeopardTanks#Warfare
https://www.gazeta.ru/army/news/2023/12/05/21855127.shtml
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