使用目录更改别名 bash

Question

是否可以修改~/.bashrc以便当我更改目录别名时也更改

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例如，当我在目录/home/user/Desktop时，python3 别名是alias python3=/usr/bin/python3当我在目录/home/user/Downloads时，python3 别名是python3=/opt/conda/bin/python3

Answer 1

使其成为 shell function 检查当前目录并执行适当的版本。

python3() {
    case "$PWD" in
    /home/user/Desktop) /usr/bin/python3 "$@" ;;
    /home/user/Downloads) /opt/conda/bin/python3 "$@" ;;
    *) /some/other/python3 "$@" ;;
    esac
}