scld

Simple command-line downloader

About application

Simple command-line downloader (scld) is elementary command line application based on Boost.Beast for downloading:

• homogeneous files from URLs with format like: shared URL partksuffix, shared URL part(k+1)suffix, shared URL part(k+2)suffix, shared URL part..., shared URL part(N-1)suffix, shared URL partNsuffix;
• from a file contained the addresses of the files line by line;
• directly file by providing a full address.

Options

• -r or --range after that option specify arguments: shared part of URL, shared suffix, first and last indexes.
• -t or --txt downloads files from URLs provided as command-line arguments (fstarting from the second one) and standard input.
• -f or --file downloads files from URLs listed in text files specified via command-line arguments (from the second onward) and standard input.
• -h or --help display main information about the software and specific types of command line options.
• -v or --version display version information.

Clone and build

For build project from sources you must install Make, g++, OpenSSL, oneTBB and Boost.
For OS based on Debian you may do that with APT:

sudo apt-get install git make g++ openssl libssl-dev libtbb-dev libboost-all-dev

If you use Windows OS you may do that with msys2:

pacman -S git make mingw-w64-x86_64-gcc mingw-w64-x86_64-openssl mingw-w64-x86_64-tbb mingw-w64-x86_64-boost mingw-w64-x86_64-asio

Cloning project and changing current directory:

git clone https://github.com/KlimentLagrangiewicz/scld
cd scld

Building from source (Linux):

make

Building from source (Windows):

make windows

If building was ok, you can find executable file in bin subdirectory.

Examples

scld -r "https://www.mangaread.org/wp-content/uploads/WP-manga/data/manga_60b4a21e01c9b/11e6c5d005eb13e15cc7a6ff7dfba10b/" ".jpeg" "3" "17"

scld -r "https://hpc-education.unn.ru/files/courses/XeonPhi/Lection" ".pdf" "01" "07"

scld -r "https://one-way.work/auto/112/96/48/" "_res.png" "1" "15"

scld -t "https://cs13.pikabu.ru/video/2024/08/12/1723441171223051126_a85d8f65_720x720.webm"

scld -t "https://cs16.pikabu.ru/s/2025/10/09/19/cmtsjfwl_s0f0d17m0_720x1280.mp4" "https://cs14.pikabu.ru/post_img/big/2023/10/09/9/169686042512661648.jpg" "https://iit.cs.msu.ru/media/media/educational_materials/Operatsionnye_sistemy_vzaimodeystvie_protsessov.pdf" "https://cs19.pikabu.ru/s/2025/08/28/21/snsuxw4p_lg.png" "https://sun9-60.userapi.com/s/v1/ig2/p1ZWwAleO3GQ2Ms3G3elCPtTu6ZM_EV2w4HjVHVcazG7ZeOUTU_g5LbkZunCJ057AVco7dSHoamb4-8vBE8zbVjZ.jpg?quality=95&as=32x32,48x48,72x72,108x108,160x160,240x240,360x360,480x480,540x540,640x640,720x720,1080x1080,1280x1280,1440x1440,2560x2560" "https://pk.mpei.ru/docs/campus_map.png"

cat some_text_file.txt | scld -t

scld -t < some_text_file.txt

cat some_text_file.txt | scld -t "https://pk.mpei.ru/docs/campus_map.png" https://cs18.pikabu.ru/s/2025/10/09/10/5ebrcznf_s0f0d10m0_1080x1920.mp4

scld -f some_text_file.txt other_txt_file.txt

 ls | grep *.txt | scld -f

 ls | grep *.txt | scld -f other_txt_file.txt

TODO list:

• Improving handling of command line arguments.
• Replacing curl with Boost.Beast in the project.
• Adding new options.