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The spider’s job is to look for new stuff on the web and update the already indexed version of your site. That “new stuff” can be a new page on an existing site, a change to an existing page, or an entirely new site or blog. Once the spider finds a new site or page, it n...
For example, if you’re sending data from Host A to Host B, as shown in Figure 9-1, your bytes leave the application layer on Host A and travel through the transport and network layers on Host A; then they go down to the physical medium, across the medium, and up again through the...
the server responds by sending a piece of JavaScript code. This code must then be executed by the client. The client then returns the output of this code to the server.The server allows access to the site
If an existing server doesn't support settings management, you can either choose to upgrade the server in-place or migrate the settings for use on a new staging server. Migration requires running a PowerShell script that extracts the existing settings for use in a new installation. Use this...
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Finally, the utility nm-online will tell you whether the network is up or down. If the network is up, the command returns zero as its exit code; it’s nonzero otherwise. (For more on how to use an exit code in a shell script, see Chapter 11.) 要通过命令行控制NetworkManager,可以...
Step 1. Write Notes or a Script in Advance Few people are gifted enough speakers to record straight off the top of their head, without any preparation. That’s a recipe for lots of false starts, “ums,” and long pauses that you’ll later have to edit out. Trust me, I know first-...
You’re now able to set up an automated monitoring script for your long-running Python task that’ll have real-time access to the output your script sends to the output stream. But what if you’ve taken over the task of monitoring a script that contains thousands ofprint()calls? Will yo...
They're for you, not the world to see. Don't get too precious, your storyboard doesn't need to be a work of art. Keep it moving. Do parts of your script feel slow? Are there leaps in time or logic? Can some sections be removed entirely? Feed these ideas back into your script...