是否有暫停、繼續或中止的標準命令？

Question

我正在尋找foo可能包含以下內容的內容：

$ echo blah && foo && echo the sequel
blah
Do you want to continue? [y/n]: n
$ echo blah && foo && echo the sequel
blah
Do you want to continue? [y/n]: y
blah
$

Answer 1

標準？不。

你可以做

foo() {
    local answer
    while true; do
        read -p "Do you wish to continue? [y/n]: " answer
        case $answer in
            [yY]*) return 0 ;;
            [nN]*) return 1 ;;
        esac
    done
}