Do you know several techniques to solve the problem of Linux space not being released?

In the Linux system, the Linux command chm, when the user installs, uninstalls, or adds a new program, the system space may be weakened. Below are several methods I used to solve the problem of Linux space not being released:

1. Disk space detection

The reason why the space is not released may be that the space of the c drive is not enough for Linux certification, so we should use the df-h command to check the remaining space of the c drive. Such as:

$df-h

FilesystemSizeUsedAvailUse%Mountedon

udev7.8G07.8G0%/dev

tmpfs1.6G9.5M1.6G1%/run

/dev/mapper/ubuntu-vg925G287G639G31%/

We can see from the results that linux releases hard disk space, the /dev/mapper/ubuntu-vg hard disk has 639G of remaining space. The space is still sufficient, but sometimes there is very little remaining space. , then we need to uninstall some necessary programs to clean up the c drive space.

2. Clear video memory

In addition, we can also use the `free-h` command to detect the video memory status of the Linux system. Such as:

$free-h

totalusedfreesharedbuff/cacheavailable

Mem:7.7G1.4G2.6G177M3.6G5.3G

Swap:3.9G3.2G726M

As can be seen from the previous results, the video memory usage is very high, so you can consider using sync, echo3>/proc/sys/vm/drop_caches, swapoff-a and swapon-a to release the video memory so that the Linux system space can be released .

3. Clean the log

There is also a huge space consumer in the Linux system: system logs. We can use du-sh/VAR/LOG/* to view the current system log situation:

$du-sh/var/log/*

7.0M/var/log/btmp

20K/var/log/dist-upgrade

605M/var/log/ufw.log

164K/var/log/auth.log

You can see from insideLinux releases hard disk space, /var/log/ufw.log consumes most of the space, we can use rm-rf/var/log/ufw.log to eliminate it System log to solve the problem of Linux space not being released.

The above are my several methods to solve the problem of Linux space not being released. The content of this article is for reference only. If you want to get more information, please read more and practice!

Houlangyun is the first choice for servers in Taiwan. 2H2G is available for 10 yuan in the first month.

Houlangyun () provides simple, easy-to-use, affordable Singapore/Malaysian cloud servers and independent servers. IDC+ISP+ICP qualifications. Member of ARIN and APNIC. Mature technical team with 15 years of industry experience.

The above is the detailed content of Do you know several techniques to solve the problem of Linux space not being released?. For more information, please follow other related articles on the PHP Chinese website!