Check CentOS 7 disk space

See disk usage

df -h

cd /; du -sxh *

See treesize

vi /bin/treesize

#/bin/sh
du -k --max-depth=1 | sort -nr | awk '
     BEGIN {
        split("KB,MB,GB,TB", Units, ",");
     }
     {
        u = 1;
        while ($1 >= 1024) {
           $1 = $1 / 1024;
           u += 1
        }
        $1 = sprintf("%.1f %s", $1, Units[u]);
        print $0;
     }
    '

chmod +x /bin/treesize

treesize