How to recycle disk space in Debian

This article introduces several methods to recycle disk space in Debian systems.

1. Analysis of space usage

First, use the following command to view disk space usage:

• lsblk : Displays block device information.
• df -h : Displays file system disk space usage in an easy-to-read format.

2. Clean useless files and directories

• /tmp directory: Clean temporary files in this directory regularly (be careful to back up important files).
• Log file: Delete expired log files in /var/log directory.
• du -sh /path/to/directory : View the size of the specified directory.

3. Clean the APT cache

• dpkg --list > /path/to/yourfile.txt : Lists all installed packages to the specified file.
• Directly check the files in /var/cache/apt/archives/ and /var/cache/apt/archives/partial/ directories.
• sudo apt-get clean : Clean APT cache.
• sudo apt-get autoclean : Clean up the downloaded but no longer needed package cache.

4. Uninstall useless software packages

• dpkg --list : Lists all installed packages.
• sudo apt-get remove package_name : Uninstall the package (keep the configuration file).
• sudo apt-get purge package_name : Completely uninstall the package and its configuration files.

5. Delete orphan software packages

• sudo apt-get autoremove : Removes dependency packages that are no longer needed.
• deborphan : Find and list orphan packages, and need to be deleted manually.

6. Delete outdated software packages

• aptitude search ?obsolete : Find out obsolete packages.
• sudo apt-get purge package_name : Delete outdated packages.

7. Adjust the partition size (advanced)

Use tools such as gparted to resize partitions to free up more space. Note: This operation requires caution, as incorrect operations may lead to data loss.

8. File compression

For large files, you can use gzip , bzip2 or LZMA to compress them to reduce the file size.

9. Uninstalling infrequently used software and services

Uninstall software and services that are no longer needed, freeing up system resources and disk space.

Through the above methods, you can effectively reclaim disk space of your Debian system. Remember to back up important data before performing any deletion operations.

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