根文件夹正在填满和填满

我查看了其他线程，他们建议了一些有用的权宜之计来释放文件中的空间[卸载我不使用或几乎从未使用过的程序，使我的根更大。]

为什么文件夹不断填满（即使我没有安装任何东西），有没有办法阻止它？即使多年来我安装了相同的 Ubuntu，它也从未发生过，这是新的

这是我收到的消息的屏幕截图，以防我没有正确解释：

https://postimg.cc/xqcnr2sq

user@computername:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            3.8G     0  3.8G   0% /dev
tmpfs           785M  1.9M  783M   1% /run
/dev/sda5        14G   13G  804M  94% /
tmpfs           3.9G  185M  3.7G   5% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/loop0      3.8M  3.8M     0 100% /snap/gnome-system-monitor/81
/dev/loop1      3.8M  3.8M     0 100% /snap/gnome-system-monitor/77
/dev/loop3      2.3M  2.3M     0 100% /snap/gnome-calculator/260
/dev/loop2       54M   54M     0 100% /snap/core18/941
/dev/loop4       90M   90M     0 100% /snap/core/6818
/dev/loop5      144M  144M     0 100% /snap/gnome-3-28-1804/23
/dev/loop6      1.0M  1.0M     0 100% /snap/gnome-logs/61
/dev/loop10     4.2M  4.2M     0 100% /snap/gnome-calculator/352
/dev/loop7       35M   35M     0 100% /snap/gtk-common-themes/818
/dev/loop8      219M  219M     0 100% /snap/gimp/130
/dev/loop9      196M  196M     0 100% /snap/vlc/555
/dev/loop11      15M   15M     0 100% /snap/gnome-logs/45
/dev/loop12      15M   15M     0 100% /snap/gnome-characters/254
/dev/loop14     152M  152M     0 100% /snap/gnome-3-28-1804/40
/dev/loop15     141M  141M     0 100% /snap/gnome-3-26-1604/82
/dev/loop13      35M   35M     0 100% /snap/gtk-common-themes/1122
/dev/loop17     4.2M  4.2M     0 100% /snap/gnome-calculator/406
/dev/loop16     141M  141M     0 100% /snap/gnome-3-26-1604/74
/dev/loop18     203M  203M     0 100% /snap/vlc/770
/dev/loop19      92M   92M     0 100% /snap/core/6531
/dev/loop20     1.0M  1.0M     0 100% /snap/gnome-logs/57
/dev/loop21     518M  518M     0 100% /snap/libreoffice/115
/dev/loop22     3.8M  3.8M     0 100% /snap/gnome-system-monitor/70
/dev/loop23     219M  219M     0 100% /snap/gimp/165
/dev/loop24     161M  161M     0 100% /snap/midori/451
/dev/loop25     484M  484M     0 100% /snap/libreoffice/106
/dev/loop26      90M   90M     0 100% /snap/core/6673
/dev/loop27     141M  141M     0 100% /snap/gnome-3-26-1604/78
/dev/loop28      54M   54M     0 100% /snap/core18/731
/dev/loop29      15M   15M     0 100% /snap/gnome-characters/206
/dev/loop31     203M  203M     0 100% /snap/vlc/768
/dev/loop30      54M   54M     0 100% /snap/core18/782
/dev/loop32      36M   36M     0 100% /snap/gtk-common-themes/1198
/dev/loop33      15M   15M     0 100% /snap/gnome-characters/258
/dev/loop34     523M  523M     0 100% /snap/libreoffice/112
/dev/sda6       101G   75G   22G  78% /home
tmpfs           785M   48K  784M   1% /run/user/1000

谢谢