> find-modelname-in-epson-ppds
> find-modelname-in-samsung-ppds
> find-modelname-in-hp-ppds
>等…

我一直在写功能读取输出并过滤它：

function filter-epson {
    find-modelname-in-epson-ppds | sed <bla-blah-blah>
}

function filter-hp {
    find-modelname-in-hp-ppds | sed <the same bla-blah-blah>
}
etc ...

但是我以为这样做会更好：

function filter-general {
    (somehow get input) | sed <bla-blah-blah>
}

然后再调用另一个高级功能：

function high-level-func {
    # outputs filtered information
    find-modelname-in-hp/epson/...-ppds | filter-general 
}

如何用最好的bash做法实现这一点？