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Poppler UtilitiesThe Poppler utilities provide many Unix command-line tools for manipulating PDFs. Install via: sudo apt-get install poppler-utils (Ubuntu) sudo apk add poppler-utils (Alpine) brew in

Extract a Portion of the Video1ffmpeg -ss "$start_time_in_seconds" -i "$input" -to "$end_time_in_seconds" -c copy "$output" Reduce a Video’s Resolution by Half

吃在美洲——接地气儿的食材 Eating in the Americas - Down-to-earth Foodstuffs 这些植物和动物在美洲有原生族群： These plants and animals have populations native to the Americas: 植物 Plants 天门冬目 Asparagales 天门冬科 Asparagaceae 龙舌兰属 Aga

While SSH is a staple tool and almost universally understood among Linux users, setting up VNC for remote desktop access - especially headlessly or with virtual framebuffers - remains mysterious to ma

“哎妈呀，这不就是咱们屯子里的那个……吗！” 专有名词 Berkeley 桦林 古英语的 *beorc* 意为桦树，*leah* 意为林地、空地 Carmichael 米哈伊尔堡 苏格兰盖尔语的 caer 意为“要塞”或“堡垒” Cornell 角斗士 古凯尔特语的 corn 意为“角”或“突出物 ”，wall 意为“统治者”或“勇士” Dunbar 山头堡 苏格兰盖尔语的 dùn

Metaclasses are one of Python’s most powerful yet least understood features. They enable patterns that would be difficult or impossible with regular class definitions. In this post, we’ll explore meta

Creating Custom Data Structures from Abstract Containers in collections.abcPython’s collections.abc module provides a set of abstract base classes (ABCs) that define the interfaces for various contain

语言是用来交流的，不是用来炫耀、排斥、孤立的。 你是否遇到过这种情况？ 在土耳其旅游，想对店员说一句“Teşekkür ederim”，但看着字母完全不会读？ 在冰岛听到地名“Eyjafjallajökull”，直接放弃尝试？ 想学几句格鲁吉亚语、阿拉伯语，但连音标都看不懂？ 我们大多数人只学过汉语拼音和英语，但国际音标（IPA）里很多符号看起来像天书。其实，它们大多能用拼音的发音“近似替

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Firmly define the research topic. Do literature research based on keywords, never limit the scope of journals and conferences, and continue literature research even after starting the project. Collec