dockerfile.run

gtimer

GTK-based X11 task timer

Debian

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

Ubuntu

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

Kali Linux

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

Raspbian

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

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