bash 使用自定义文件名同时（并行）下载多个文件
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Download multiple files simultaneously (parallel) with custom filenames
提问by octosquidopus
In a bash script, I am trying to download multiple files in parallel, with custom filenamesusing a singlecommand (no loops).
在bash脚本，我想下载多个文件并行，与自定义文件名使用一个命令（没有循环）。
I tried using aria2c:
我尝试使用 aria2c：
aria2c -j2 URL1 URL2 # BAD: outputs to a single file
aria2c -j2 -Z URL1 -o 1 URL2 -o 2 # BAD: filenames taken from link (-o is ignored)
The second one ignores the output filename because, quoting the aria2c manpage:
第二个忽略输出文件名，因为引用了 aria2c 联机帮助页：
In Metalink or BitTorrent download you cannot specify file name. The file name specified here is only used when the URIs fed to aria2 are done by command line without --input-file, --force-sequential option. For example:
$ aria2c -o myfile.zip "http://example1.com/file.zip" "http://example2.com/file.zip"
在 Metalink 或 BitTorrent 下载中，您不能指定文件名。此处指定的文件名仅在提供给 aria2 的 URI 由命令行完成而没有 --input-file, --force-sequential 选项时使用。例如：
$ aria2c -o myfile.zip " http://example1.com/file.zip" " http://example2.com/file.zip"
This is what I want to avoid:
这是我想要避免的：
aria2c URL1 -o 1 &
aria2c URL2 -o 2 &
aria2c URL3 -o 3 # BAD: slow and ugly, because aria2c is called thrice
Any suggestions?
有什么建议？
回答by ArtemB
Aria2c supports getting URIs from a file.
Try writing your file names into the file and then running "aria2c -i uri-list.txt" or write them to stdout and pipe them to "aria2c -i -"
尝试将您的文件名写入文件，然后运行“aria2c -i uri-list.txt”或将它们写入标准输出并通过管道将它们传送到“aria2c -i -”
回答by gulp79
with -Z option:
使用 -Z 选项：
-Z, --force-sequential[=true|false] Fetch URIs in the command-line sequentially and download each URI in a separate session, like the usual command-line download utilities.
so in your case:
所以在你的情况下：
aria2c -Z URL1 URL2 URL3 URL4
