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Linux Tips

特殊符号

` grave accent

noun

a mark placed over a vowel in some languages to show how it should be pronounced, as over the e in the French word père 钝重音符,沉音符,抑音符(标在元音上面表发音)

 ➡  compare acute accent, circumflex, tilde (1) , umlaut

 ➡  see also grave1

echo `date`
echo $(date)

$(( )) 用于数学运算

echo $(( 1 + 1 ))

USAGE

google explaination

在命令行工具的用法说明中,通常有一些符号来表示参数的类型和数量。这些符号的含义可能因不同的工具而有所差异,但一般来说,有以下几种常见的规则²:

例如,假设有一个工具叫做 copy,它用于复制文件或目录。它的用法说明可能是这样:

copy <source> <destination> [-r] [-v]

这里:

你还有其他关于命令行符号的问题吗?

Source: Conversation with Bing, 2/28/2023(1) Document command-line syntax - Google Developers. https://developers.google.com/style/code-syntax Accessed 2/28/2023. (2) cmd | Microsoft Learn. https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/cmd Accessed 2/28/2023. (3) linux - bash: how to pass command line arguments containing special …. https://superuser.com/questions/163515/bash-how-to-pass-command-line-arguments-containing-special-characters Accessed 2/28/2023.

远程控制

树莓派4B安装向日葵踩坑笔记

sudo dpkg -i SunloginClient_11.0.1.44968_kylin_arm.deb