查看各挂载
df -l
df -l
Filesystem 1K-blocks Used Available Use% Mounted on
udev 8181332 0 8181332 0% /dev
tmpfs 1639148 792 1638356 1% /run
/dev/xvda1 60923672 36269392 24637896 60% /
tmpfs 8195724 0 8195724 0% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 8195724 0 8195724 0% /sys/fs/cgroup
/dev/loop4 25728 25728 0 100% /snap/amazon-ssm-agent/5656
tmpfs 1639144 0 1639144 0% /run/user/1000
/dev/loop3 56960 56960 0 100% /snap/core18/2566
/dev/loop0 49152 49152 0 100% /snap/snapd/17029
/dev/loop2 25088 25088 0 100% /snap/amazon-ssm-agent/6312
/dev/loop5 49152 49152 0 100% /snap/snapd/17336
/dev/loop1 56960 56960 0 100% /snap/core18/2620
df -h
df -h
Filesystem Size Used Avail Use% Mounted on
udev 7.9G 0 7.9G 0% /dev
tmpfs 1.6G 824K 1.6G 1% /run
/dev/xvda1 59G 36G 23G 62% /
tmpfs 7.9G 0 7.9G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup
/dev/loop4 26M 26M 0 100% /snap/amazon-ssm-agent/5656
tmpfs 1.6G 0 1.6G 0% /run/user/1000
/dev/loop2 25M 25M 0 100% /snap/amazon-ssm-agent/6312
/dev/loop1 56M 56M 0 100% /snap/core18/2620
/dev/loop0 56M 56M 0 100% /snap/core18/2632
/dev/loop3 50M 50M 0 100% /snap/snapd/17883
查看目录占用情况
du -h --max-depth=1
75M ./boot
3.1G ./usr
178M ./lib
0 ./dev
1.8G ./root
15M ./bin
885M ./snap
4.0K ./srv
6.5M ./etc
1.8G ./opt
16K ./lost+found
5.3G ./home
du: cannot access './proc/11101/task/11101/fd/4': No such file or directory
du: cannot access './proc/11101/task/11101/fdinfo/4': No such file or directory
du: cannot access './proc/11101/fd/3': No such file or directory
du: cannot access './proc/11101/fdinfo/3': No such file or directory
0 ./proc
2.8G ./var
5.2M ./tmp
792K ./run
4.0K ./lib64
0 ./sys
4.0K ./mnt
20G ./data
15M ./sbin
4.0K ./media
36G .
切换到占用了大量空间的目录下，继续查看该目录占用情况
cd data
du -h --max-depth=1
查看已删除空间却没有释放的进程
lsof -n / | grep deleted
lsof -n | grep deleted | less
- less: 命令行以翻页形式
java 5021 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 root 1w REG 202,1 33555754705 2576253 /server/null (deleted)
java 5021 root 2w REG 202,1 33555754705 2576253 /server/null (deleted)
java 5021 5033 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 5033 root 1w REG 202,1 33555742901 2576253 /server/null (deleted)
java 5021 5033 root 2w REG 202,1 33555742901 2576253 /server/null (deleted)
java 5021 5034 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 5034 root 1w REG 202,1 33555742901 2576253 /server/null (deleted)
java 5021 5034 root 2w REG 202,1 33555742901 2576253 /server/null (deleted)
java 5021 5035 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 5035 root 1w REG 202,1 33555745171 2576253 /server/null (deleted)
java 5021 5035 root 2w REG 202,1 33555745171 2576253 /server/null (deleted)
java 5021 5036 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 5036 root 1w REG 202,1 33555745398 2576253 /server/null (deleted)
java 5021 5036 root 2w REG 202,1 33555745398 2576253 /server/null (deleted)
java 5021 5037 root 0u CHR 136,5 0t0 8 /dev/pts/5 (deleted)
java 5021 5037 root 1w REG 202,1 33555745625 2576253 /server/null (deleted)
java 5021 5037 root 2w REG 202,1 33555745625 2576253 /server/null (deleted)
kill进程
kill -9 5021