linux 查看磁盘的工具命令
一：df 命令
root@uk8s:/data/umi-templates# df -h |more文件系统 大小 已用 可用 已用% 挂载点tmpfs 595M 67M 529M 12% /run/dev/mapper/ubuntu--vg-ubuntu--lv 23G 18G 3.7G 83% /tmpfs 3.0G 0 3.0G 0% /dev/shmtmpfs 5.0M 0 5.0M 0% /run/lock/dev/sda2 2.0G 253M 1.6G 14% /bootshm 64M 0 64M 0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/3ea867f29e73c34f403e59d26fa8dad3714865cf3f211551d5600cca2b0b34b6/shmshm 64M 0 64M 0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/f54491b168bdad833d25ceb5ad38892f6ce06e4d05d0834431b3ce924fd7c0cd/shmshm 64M 0 64M 0% /run/containerd/io.containerd.grpc.v1.cri/sandboxes/24a81171466db05faeea8cf0d80a7d2efa8215488e5a5d010efe62eb1a36373a/shmoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/3ea867f29e73c34f403e59d26fa8dad3714865cf3f211551d5600cca2b0b34b6/rootfsoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/24a81171466db05faeea8cf0d80a7d2efa8215488e5a5d010efe62eb1a36373a/rootfsoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/f54491b168bdad833d25ceb5ad38892f6ce06e4d05d0834431b3ce924fd7c0cd/rootfsoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/28e1a191dd9992ce9bcef5ef6516bab00d2f1ced1d7bfa7a0cbfd4dd3b30a99d/rootfsoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/471436af50caf5d6bd6d11975f1fdf64ebbf87a485c64855d7f3e44dfcb01bdb/rootfsoverlay 23G 18G 3.7G 83% /run/containerd/io.containerd.runtime.v2.task/k8s.io/f9f61d3c1e579f349ced9f7c8cd52c08b600af829二：ncdu 命令
root@uk8s:/etc/apt# ncdu
找不到命令 “ncdu”，但可以通过以下软件包安装它：
apt install ncdu
root@uk8s:/etc/apt# apt install ncdu
正在读取软件包列表... 完成
正在分析软件包的依赖关系树... 完成
正在读取状态信息... 完成
下列【新】软件包将被安装：
ncdu
升级了 0 个软件包，新安装了 1 个软件包，要卸载 0 个软件包，有 6 个软件包未被升级。
需要下载 42.8 kB 的归档。
解压缩后会消耗 105 kB 的额外空间。
获取:1 http://mirrors.aliyun.com/ubuntu focal/universe amd64 ncdu amd64 1.14.1-1 [42.8 kB]
已下载 42.8 kB，耗时 0秒 (111 kB/s)
正在选中未选择的软件包 ncdu。
(正在读取数据库 ... 系统当前共安装有 124734 个文件和目录。)
准备解压 .../ncdu_1.14.1-1_amd64.deb ...
正在解压 ncdu (1.14.1-1) ...
正在设置 ncdu (1.14.1-1) ...
正在处理用于 man-db (2.10.2-1) 的触发器 ...
Scanning processes...
Scanning linux images...
Running kernel seems to be up-to-date.
No services need to be restarted.
No containers need to be restarted.
No user sessions are running outdated binaries.
No VM guests are running outdated hypervisor (qemu) binaries on this host.
#命令案例
root@uk8s:/data/umi-templates# ncdu -h
ncdu <options> <directory>
-h,--help This help message
-q Quiet mode, refresh interval 2 seconds
-v,-V,--version Print version
-x Same filesystem
-e Enable extended information
-r Read only
-o FILE Export scanned directory to FILE
-f FILE Import scanned directory from FILE
-0,-1,-2 UI to use when scanning (0=none,2=full ncurses)
--si Use base 10 (SI) prefixes instead of base 2
--exclude PATTERN Exclude files that match PATTERN
-X, --exclude-from FILE Exclude files that match any pattern in FILE
-L, --follow-symlinks Follow symbolic links (excluding directories)
--exclude-caches Exclude directories containing CACHEDIR.TAG
--confirm-quit Confirm quitting ncdu
--color SCHEME Set color scheme
