有一天逛書局,看到一本薄薄的書,談的是原子理論,作者認為現有我們一般所公認的原子模型 (即中子質子在中間,電子在外圍) 是錯的。他先提出了一些問題,如為甚麼物質爛了後,不能重新接合?難以解釋的 Van der Waals force 等等
Using a non-standard shell as your login shell
Suppose that you want to use a non-standard shell as your login shell(for the purposes of this, 'non-standard' means that it's not installedsystem-wide; you have to compile your own version). Further suppose,for the sake of argument, that the shell you want to use doesn't havea command-line option to tell it to be a login shell.
If your shell did have such a command line option, using it as yourlogin shell would be
Lady First 專欄 (7-8)
增村保造:《赤色天使》Red Angel (舊文重貼)
增村保造:《妻之告白》Wife Confess (舊文重貼)
增村保造:《卍》Manji (舊文重貼)
增村保造:《盲獸》Blind Beast (舊文重貼)
Trash
This is a hard idea to swallow, and it will definitely stick in your throat if you have an addiction, say, to shopping and costuming yourself.
Making an effort to hold back buying new stuff is never easy; chucking your old collections of textbooks and lecture notes, directories, shoes, toys, comic books, jewelry (or fill in whatever worthy of your
A bash irritation: the incompatible exec
There are a reasonable number of good things about bash (and thegeneral GNU program attitude of which it is a standards-bearer). But every so often it does something that causes meto grind my teeth. This time around the irritation is what bash hasdone to the innocent exec command.
What they've done is simple: they've made exec take options.
The easiest way to explain the problem with this is in illustratedform. So:
sh$ exec -rc
<... program