Bash 函数在两个分支上运行任意命令

Question

我想编写一个 bash 函数，在多个分支上执行任意命令。

compare_command () {
    branch2="$1"
    shift
    command="$@"
    echo $branch2
    echo $command
    # assume $@ is command and args
    $(command) 2>&1 | tee baseline.log
    git checkout "$branch2"
    $(command) 2>&1 | tee "$branch2".log
    git checkout -
}

compare_command master ls，例如，失败并显示“命令未找到：1” compare_command master ls -a，失败并显示“命令未找到：ls -a”

Answer 1

我假设您只是对 bash 中如何使用括号感到困惑

compare_command () {
    branch2="$1"
    shift
    echo "$branch2"
    echo "$@"
    # assume $@ is command and args
    "$@" 2>&1 | tee baseline.log
    git checkout "$branch2"
    "$@" 2>&1 | tee "$branch2".log
    git checkout -
}