2021年2月11日
[Bash] Read and Use JSON in Bash with jq
摘要： jq Bash, unfortunately, doesn’t ship with a command that can work with JSON natively. In this lesson, we’ll learn how to read and do basic queries on 阅读全文
posted @ 2021-02-11 21:48 Zhentiw 阅读(64) 评论(0) 推荐(0)
[Bash] Set Default Arguments with Bash Shell Parameter Expansions
摘要： Shell Parameter Exapnsion In this lesson, we'll see how shell parameter expansions can be used to simply expand a variable's valuable and also provide 阅读全文
posted @ 2021-02-11 21:31 Zhentiw 阅读(76) 评论(0) 推荐(0)
[Bash] Shortcut
摘要： Shortcut For example we have a long command: curl -i http://example.com Ctrl + a Move to the beginning of the line Ctrl + e Move to the end of the lin 阅读全文
posted @ 2021-02-11 20:11 Zhentiw 阅读(88) 评论(0) 推荐(0)
[Bash] Rerun Bash Commands with History Expansions (!! & !$)
摘要： !! & !& History expansions let you interact with bash's history. For example, if you forgot to run a command with sudo, you can sudo !! to rerun the l 阅读全文
posted @ 2021-02-11 20:02 Zhentiw 阅读(424) 评论(0) 推荐(0)
[Bash] Create and Copy Multiple Files with Brace Expansions in Bash
摘要： Copy Brace expansions are commonly used with the cp or mv commands in order to dynamically generate strings. In this lesson, we'll use a brace expansi 阅读全文
posted @ 2021-02-11 19:56 Zhentiw 阅读(96) 评论(0) 推荐(0)
[Bash] Add Executable Files to $PATH with Bash
摘要： $PATH PATH is a global environment variable that represents a list of directories bash looks in for executable files. The executable files for bash co 阅读全文
posted @ 2021-02-11 15:25 Zhentiw 阅读(110) 评论(0) 推荐(0)