创建一个包含bash命令替换和参数的git别名 [英] Creating a git alias containing bash command substitution and an argument

问题描述

知道了:

git diff $(git status -s | awk'FNR == $ LINE_NUM {print $ 2}')

...其中，行号是按状态输出的文件.

...where line number is the file output by status.

现在，我想在 .gitconfig 中为此命令创建一个别名:

Now I want to create an alias for this command in .gitconfig:

[alias]
diff-num = $WHAT_SHOULD_I_PUT_HERE?

我希望该别名根据我将在命令行中键入的行号参数运行git的diff命令.我是bash的新手，我不确定是否需要bash函数来处理此问题或如何将参数传递给替代命令.

I want this alias to run git's diff command based on the line number argument I'll type in on the command line. I'm new to bash and I'm not sure if I need a bash function to handle this or how to pass the argument into the substituted command.

推荐答案

通常的形式是使用常规的！ shell逸出，定义一个任意命名的shell函数并运行git为它提供您的参数.我的第一个选择是 lgdo ，

The usual form for this is to use the conventional ! shell escape, define an arbitrarily-named shell function and run that, git supplies it with your args. One of my goto's is lgdo,

git config alias.lgdo '!f() { git log --graph --decorate --oneline "${@---all}"; }; f'

另外，我有 gr 和 grl 作为 git config --get-regexp {，-local} 别名:

also, I have gr and grl as git config --get-regexp {,--local} aliases:

[alias]
        grl = "!f() { git config --local --get-regexp \"${@-.}\"; }; f"
        gr = "!f() { git config --get-regexp \"${@-.}\"; }; f"

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