UNIX For Dummies [Electronic resources] نسخه متنی

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UNIX For Dummies [Electronic resources] - نسخه متنی

John Levine, Margaret Levine Young

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UNIX For Dummies, 5th Edition, at various online bookstores. (The difference may be small, but when you’re buying 100 copies for everyone on your Christmas list, those pennies can add up. Oh, you weren’t planning to do that? Phoo.)


Wild window mania


To display a page in a new browser window, click a link with the right mouse button and select Open in New Window or Open Link in New Window from the menu that pops up. To close a window, click the Close (X) button at the top right of the window frame. Users with three-button mice can usually open a link in a new window by clicking the middle button (although sometimes browsers are set up to open a new tab instead, as we discuss in the next section).

You can also create a new window without following a link. Press Ctrl+N or choose FileNewNavigator Window (in Netscape Navigator), FileNew Navigator Window (in Mozilla) or LocationNew Window (in Konqueror).


Tab dancing


Konqueror and Mozilla (and Opera for that matter) have tabs, which are multiple pages that you can switch among in a window. Figure 18-4 shows a Mozilla window with three tabs. Just click any of the tabs near the top of the window to show its page. Click the little star-box thing at the left end of the tab line or press Ctrl+T to make a new empty tab or the X at the right end to get rid of the current tab. In Konqueror, click a link with the middle button, or right click and select Open in New Tab or Open in Background Tab, the latter meaning that it loads the new tab while leaving the existing tab visible.

Like multiple windows, tabs are multithreaded so you can have one loading in the background while you’re reading another, and little rotating arrows in the tab bar show you which ones are loading and which are ready. For most purposes, we find tabs more convenient than windows. You can use both; if you open several windows in Konqueror. In Mozilla, each window can have several tabs.


Short attention span tips


Tip If you have a slow Internet connection, use at least two browser tabs or windows at the same time. While you’re waiting for the next page to arrive in one tab or window, you can read the page that arrived a while ago in the other.

If you ask your browser to begin downloading a big file, it displays, most usefully, a small window in the corner of your screen. Mozilla displays a “thermometer” showing the download progress. Although some people consider watching the thermometer grow or the pages fly enough entertainment (we do when we’re tired enough), you can click back to the main browser window and continue surfing.

Warning Doing two or three things at a time in your browser when you have a dial-up Net connection is not unlike squeezing blood from a turnip — you can squeeze only so much blood. In this case, the blood is the amount of data your computer can pump through your modem. A single download task can keep your modem close to 100 percent busy, and anything else you do shares the modem with the download process. When you do two things at a time, therefore, each one happens more slowly than it does by itself.

If one task is a big download and the other is perusing Web pages, everything usually works okay because you spend a fair amount of time looking at what the Web browser is displaying; the download can then run while you think. On the other hand, although browsers let you start two download tasks at a time (or a dozen, if you’re so inclined), doing more than one at a time than one after another is no faster, and it can get confusing.

Figure 18-4: A Mozilla window with three tabs.

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