Wget linux#q=download a jar file via command line

You can see the log file using cat command. Using the tool, you can download files in background. Note that you can change the file name by using the -o lower-case option we've explained earlier.

While using wget, you can also limit the downloading speed. This can be done using the -limit-rate option, which requires a value signifying the amount in terms of bytes per second. The amount could be in bytes, kilobytes with the 'k' suffix, or megabytes with the 'm' suffix.

Read timeout is the amount of time in seconds for which wget checks for data in case no data is being received before restarting the download. By default read timeout is seconds but you can change this by using the —read-timeout option.

Whenever your download is interrupted due to bad internet connection or any other error, the tool tries to resume the download by itself. By default, the utility tries 20 times and then stops. But if you want to increase or decrease the number of tries, you can do it by using the -t command line option. NOTE : This feature comes with the exception of fatal errors like "connection refused" or "not found" , which are not retried. If you want, you can also make the wget command display additional information related to the download process.

This information is useful for debugging purposes if the tool isn't working properly. The feature can be accessed using the --debug or -d command line option. If you want, you can also modify the download progress indicator wget displays in output. There are two types of progress indicators: bar which is default and dot. However, if the output is not being displayed on terminal TTY then dot indicator is used as default.

The --progress option lets you choose the type of indicator incase you want to override the default behavior. For example:. Moving on, depending on the size of the file you are downloading, you can also adjust the way download progress meter is displayed. Note that the parameter you opt for binary, mega or giga usually depends on the size of the file being downloaded. Here's what the man page says about these styles:.

We've just scratched the surface here as wget offers plenty of more command line options. However, the ones we've discussed here should be enough to get you started. Do try these, and in case of any doubt or query, refer to the command's man page. This feature is only available to subscribers. Get your subscription here. Log in or Sign up. On this page About wget How does the wget command work?

How to download a file using wget 2. To omit all output use the following command:. Open up a file using your favorite editor or even the cat command and simply start listing the sites or links to download from on each line of the file. Apart from backing up your own website or maybe finding something to download to read on the train, it is unlikely that you will want to download an entire website.

You are more likely to download a single URL with images or perhaps download files such as zip files, ISO files or image files. With that in mind you don't want to have to type the following into the input file as it is time consuming:. If you know the base URL is always going to be the same you can just specify the following in the input file:.

If you have set up a queue of files to download within an input file and you leave your computer running all night to download the files you will be fairly annoyed when you come down in the morning to find that it got stuck on the first file and has been retrying all night.

You might wish to use the above command in conjunction with the -T switch which allows you to specify a timeout in seconds as follows:. The above command will retry 10 times and will try to connect for 10 seconds for each link in the file.

You can use wget to retry from where it stopped downloading by using the following command:. If you are hammering a server the host might not like it too much and might either block or just kill your requests. You can specify a wait period which specifies how long to wait between each retrieval as follows:.

The above command will wait 60 seconds between each download. This is useful if you are downloading lots of files from a single source. Some web hosts might spot the frequency however and will block you anyway. You can make the wait period random to make it look like you aren't using a program as follows:.

Many internet service providers still apply download limits for your broadband usage, especially if you live outside of a city. You may want to add a quota so that you don't blow that download limit.

You can do that in the following way:. Note that the -q command won't work with a single file. So if you download a file that is 2 gigabytes in size, using -q m will not stop the file downloading. Note on a multi user system if somebody runs the ps command they will be able to see your username and password. By default the -r switch will recursively download the content and will create directories as it goes. The opposite of this is to force the creation of directories which can be achieved using the following command:.

If you want to download recursively from a site but you only want to download a specific file type such as a. The reverse of this is to ignore certain files. Perhaps you don't want to download executables.

In this case, you would use the following syntax:. To use cliget visit a page or file you wish to download and right click.

A context menu will appear called cliget and there will be options to 'copy to wget ' and 'copy to curl'. Click the 'copy to wget ' option and open a terminal window and then right click and paste. The appropriate wget command will be pasted into the window. It is worth therefore reading the manual page for wget by typing the following into a terminal window:.

While the subculture that uses wget daily is heavily weighted towards Unix, using wget on Windows is a bit more unusual. This technique comes in very handy when you need to. There is a major advantage of using wget. Wget Examples The following example downloads the file and stores in the same name as the remote server.

Both are the same. Total — The total size of the file Received — The total size of the file that was has been downloaded so far. In the above example, it has downloaded k so far out of k total Xferd — This will be used when you upload some files to the remote server. During upload, this will indicate the total size of the file that has been uploaded so far. Since we are downloading a file, in this example, this is 0.

Average Speed Dload — This indicates the average download speed.