ram-limiter

#!/bin/bash

if cat /etc/cgconfig.conf | grep "group limited {"
        then
                echo "Group already there"
        else
                sudo echo "group limited {
  memory {
    memory.limit_in_bytes = 400M;
  }
}" | sudo tee -a /etc/cgconfig.conf #This adds the group limited to cgroup. If you want different memory limits, either change 400M before first run, or run sudo $EDITOR /etc/cgconfig.conf and edit the file to read whatever you need.
        fi


sudo systemctl restart cgconfig
sudo chown -R $USER /sys/fs/cgroup/memory/limited  #Allows your user to run apps with the cgroup settings.



program=$(zenity --entry --title="cGroup Memory Limiter" --text "What is the name of the program you want to run limited?" --entry-text firefox) #Grab the program name.

if which $program
        then
                cgexec -g memory:limited $(which $program) #The command to run said program with the limited memory.
        else
                zenity --error --text="Can not find that program, please check your speeling"

fi