b2sum

Calculate BLAKE2 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/b2sum>.

Install

All systems
curl cmd.cat/b2sum.sh
Debian Debian
apt-get install coreutils
Ubuntu
apt-get install coreutils
Alpine
apk add coreutils
Arch Arch Linux
pacman -S coreutils
image/svg+xml Kali Linux
apt-get install coreutils
CentOS
yum install coreutils
Fedora
dnf install coreutils
Windows (WSL2)
sudo apt-get update sudo apt-get install coreutils
OS X
brew install b2sum
Raspbian
apt-get install coreutils
Dockerfile
dockerfile.run/b2sum
Docker
docker run cmd.cat/b2sum b2sum powered by Commando

Calculate BLAKE2 cryptographic checksums. More information: <https://www.gnu.org/software/coreutils/b2sum>.

  • Calculate the BLAKE2 checksum for one or more files:
    b2sum path/to/file1 path/to/file2 ...
  • Calculate and save the list of BLAKE2 checksums to a file:
    b2sum path/to/file1 path/to/file2 ... > path/to/file.b2
  • Calculate a BLAKE2 checksum from `stdin`:
    command | b2sum
  • Read a file of BLAKE2 sums and filenames and verify all files have matching checksums:
    b2sum --check path/to/file.b2
  • Only show a message for missing files or when verification fails:
    b2sum --check --quiet path/to/file.b2
  • Only show a message when verification fails, ignoring missing files:
    b2sum --ignore-missing --check --quiet path/to/file.b2

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