Linux Space Check
To perform a space check on Linux for the largest directories use the following command replacing /home with the directory of your choice:
du -h /home | grep '[0-9\.]\+G'
To place this in a test file use the following:
echo | du -h /home | grep '[0-9\.]\+G' > spacelist.txt
You can also use the tool ncdu by using the following commands:
yum install ncdu --enablerepo=epel cd / ncdu