dockerfile.run

nproc

Print the number of processing units (normally CPUs) available. More information: <https://www.gnu.org/software/coreutils/nproc>.

Debian

RUN apt-get update && \
    apt-get install -y coreutils

Ubuntu

RUN apt-get update && \
    apt-get install -y coreutils

Alpine

RUN apk add coreutils

Arch Linux

RUN pacman -S --noconfirm coreutils

Kali Linux

RUN apt-get update && \
    apt-get install -y coreutils

CentOS

RUN yum install -y coreutils

Fedora

RUN dnf install -y coreutils

Raspbian

RUN apt-get update && \
    apt-get install -y coreutils

click the source code to copy install nproc on any operating system with command-not-found.com