And argc is shorthand notation for argument count.

argc是参数计数的简写符号。

So again, this is shorthand notation per last week for this.

同样，这是上周的速记法。

Ls is shorthand notation for list.

Ls是列表的简写符号。

That's what tilde represents in shorthand notation.

这就是tilde用速记法表示的。

There's this shorthand notation for what we'll call a parent folder.

我们称之为父文件夹有一个速记符号。