Run wget command on each line of a file and download the files (two at a time)

Question

I have a file which has urls of files to download.

For example:

https://url-of/file1.zip
https://url-of/file2.zip
https://url-of/file3.zip
...

The command i am currently using to download files is:

wget --continue --tries=0 https://url-of/file.zip

But now I need a bash script which will read urls from the file and download, two at a time.

The script i came up with so far is:

#!/bin/sh

cat file.txt |while read url
do
    wget --continue --tries=0 "$url"
done

But it download single file.

How can i edit it so that it download two files at a time.

||

Answer 1

You can put multiple read commands in the while loop. For "two at a time", but them both in the background and then wait for them to complete

while read -r first && read -r second; do
    wget "$first" &
    wget "$second" &
    wait
done < input.file

But @muru’s comment is preferable.

Answered By: glenn jackman