Linux bash 常用命令語法整理 [Jonathan's Wiki 筆記]

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====== Linux bash 常用命令語法整理 ======
===== 找目錄內檔案所佔磁碟空間 =====
  * 磁碟空間滿了通常都想知道被那些大檔案佔用了
  * 只看第一層目錄就好, 並依目錄檔案由大到小排序 <cli>
du -h -d 1 | sort -h -r
</cli>
    * ++看範例結果|<cli>
root@demo-77:/var/lib# du -h -d 1 | sort -h -r
91G     .
48G     ./docker
42G     ./kubelet
425M    ./etcd
208M    ./apt
32M     ./dpkg
6.7M    ./containerd
3.2M    ./command-not-found
940K    ./fwupd
608K    ./usbutils
560K    ./systemd
360K    ./cni
164K    ./snapd
116K    ./ucf
</cli>++
  * 只看第一層目錄就好, 並依目錄名稱排序 <cli>
du -h -d 1 | sort -k 2
</cli> 
    * ++看範例結果|<cli>
root@pve-omv5-245:/var/lib# du -h -d 1 | sort -k 2
185M    .
124M    ./apt
8.0K    ./chrony
4.0K    ./collectd
184K    ./containerd
32K     ./cron-apt
20K     ./dahdi
4.0K    ./dbus
8.0K    ./dhcp
244K    ./docker
32M     ./dpkg
12K     ./grub
44K     ./initramfs-tools
8.0K    ./logrotate
4.0K    ./misc
12K     ./monit
16K     ./nfs
40K     ./nginx
1.4M    ./openmediavault
28K     ./pam
7.1M    ./pcp
60K     ./php
</cli>++
  * 找特定目錄底下超過特定大小檔案清單
    * 參考 - https://unix.stackexchange.com/questions/140367/finding-all-large-files-in-the-root-filesystem
    * Exp. 在 / 目錄底下超過 500M 的檔案 <cli>
find / -xdev -type f -size +500M
</cli>
    * ++看範例結果|<cli>
root@demo-v2-66:~# find / -xdev -type f -size +500M
/home/rkeuser/rke2-artifacts/rke2-images.linux-amd64.tar.zst
/home/rkeuser/packages/images-base.tar
/home/rkeuser/packages/images-iiiorg.tar
/home/rkeuser/packages/images-base-gitlab.tar
/home/rkeuser/packages/rke2-artifacts.tar
/home/rkeuser/packages/images-base-bitnami.tar
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWQZ6YKNZ96RJD9AXF5238RF/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWAEMK4891D0ZBH7DQWQVAS4/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWXRKVPFM1EWNERTG95XFSDT/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWEA7P7QATPQ59YGSGBVQ71E/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWM3MGJYCWN2BKR2V7HARWV8/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HW8GV256KQ1GWS4F3H5T9TC1/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWZPDPTESV05BJD9CXN0H8GD/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWG80YT3HHF076RGW2SF78ER/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWJ5TPVC9MTPAWG1S6DX21P7/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWP1E4GB999ZDET7ZN46A33R/chunks/000001
/var/lib/kubelet/pods/76996122-6b68-4b4d-951c-dab7a9a98d2a/volumes/kubernetes.io~empty-dir/prometheus-rancher-monitoring-prometheus-db/01HWCCE42S5BJRQV0B0675SMG2/chunks/000001
/var/lib/rancher/rke2/agent/images/rke2-images.linux-amd64.tar.zst
/var/lib/rancher/rke2/agent/containerd/io.containerd.content.v1.content/blobs/sha256/a1381635860eeca930306193c7c712a8cd8af152f65e9c2fde3759d0e0bc49ac
/var/lib/rancher/rke2/agent/containerd/io.containerd.content.v1.content/blobs/sha256/60648ff0cf7732539f727874f448a87bd2032ee396ef29946353f3b59ca1a803
</cli>++


{{tag>tips linux bash 找大檔案}}