


This article will guide you how to effectively clean up junk files in the Debian system, free up disk space, and improve system performance. Be sure to back up important data before performing any deletion operations.
1. Clean the APT cache
APT cache stores downloaded packages, and cleaning these caches can free up a lot of space:
sudo apt clean # Clean download cache sudo apt clean all # Clean download cache and source code cache sudo rm -rf /var/lib/apt/lists/* # Clean package list cache
2. Clean up temporary files
A large number of temporary files will be generated during the system operation, and you can safely delete most files in the /tmp
directory:
sudo rm -rf /tmp/*
Note: This operation may affect the operation of some applications, please be cautious.
3. Clean the log files
The system logs take up a lot of space, you can use the journalctl
command to clean up the old logs:
sudo journalctl --vacuum-time=1s # Clean the logs before 1 second sudo journalctl --vacuum-size=50M # Clean the logs that occupy more than 50M space
4. Uninstall useless software packages
Use the following command to uninstall packages and their dependencies that are no longer needed:
sudo apt autoremove
To completely uninstall the package and its configuration files, use the purge
command:
sudo apt purge <package name></package>
5. Manually delete files and folders
Use the following command to manually delete unnecessary files and folders:
-
rm
: Delete file -
rmdir
: Delete empty folder -
rm -rf
: Delete non-empty folders ( use with caution! )
6. Find and delete large files
Use the find
command to find and delete files larger than the specified size:
sudo find . -type f -size 100M -exec rm -rf {} \; # Delete files larger than 100MB in the current directory and its subdirectories
7. Use ncdu to analyze disk space
The ncdu
tool can intuitively display disk space usage, making it easier for you to find files or directories that take up space:
sudo apt install ncdu ncdu / # Analyze the disk space usage of the root directory
Use the arrow keys to navigate, d
key to delete, and q
key to exit.
Through the above methods, you can effectively clean up Debian system junk files, free up disk space, and optimize system performance. Again, back up important data before performing any deletion operations.
The above is the detailed content of How to clean up junk files in Debian system. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Currency circle contract trading is a derivative trading method that uses a small amount of funds to control assets with larger value. It allows traders to speculate on the price trends of crypto assets without actually owning them. Entering the contract market requires understanding its basic operations and related concepts.

As an investment method, the currency circle contract order has attracted many investors who want to participate in cryptocurrency contract trading but do not have sufficient time and expertise. The basic principle is to associate your trading account with the outstanding trader's account selected on the platform, and the system will automatically synchronize the trader's opening and closing operation. The user does not need to manually analyze the market and execute the transaction, and the follower is done by the trader. This model seems to simplify the trading process, but it is accompanied by a series of issues that require careful consideration.

Against the backdrop of violent fluctuations in the cryptocurrency market, investors' demand for asset preservation is becoming increasingly prominent. This article aims to answer how to effectively hedge risks in the turbulent currency circle. It will introduce in detail the concept of stablecoin, a core hedge tool, and provide a list of TOP3 stablecoins by analyzing the current highly recognized options in the market. The article will explain how to select and use these stablecoins according to their own needs, so as to better manage risks in an uncertain market environment.

Bitcoin contract trading attracts numerous participants, which provides opportunities to leverage for potentially high returns. However, the inherent risk of contract trading lies in forced closing of positions, commonly known as "losing of positions". A liquidation means that the trader's position is forced to close due to the loss of margin, which often loses most or even all of the initial margin. Understanding how to set up a liquidation warning and mastering skills to avoid forced liquidation is crucial to managing contract trading risks.

The Virtual Digital Coin Exchange APP is a powerful digital asset trading tool, committed to providing safe, professional and convenient trading services to global users. The platform supports a variety of mainstream and emerging digital asset transactions, with a bank-level security protection system and a smooth operating experience.

In cryptocurrency trading such as Bitcoin, drastic fluctuations in the market are the norm. This volatility brings potential benefits, and is accompanied by significant risks. Effective risk management tools are key to traders protecting principal and locking profits, where take-profit and stop-loss settings play a crucial role.

This article will focus on the theme of stablecoin arbitrage and explain in detail how to use the possible price spreads between stablecoins such as BUSD and TUSD to obtain profits. The article will first introduce the basic principles of stablecoin spread arbitrage, and then introduce the specific operating procedures through step-by-step explanations, and analyze the risks involved and matters that need to be paid attention to to help users understand this process and realize that its returns are not stable and unchanged.

This article will discuss the world's mainstream stablecoins and analyze which stablecoins have the risk aversion attribute of "gold substitute" in the market downward cycle (bear market). We will explain how to judge and choose a relatively stable value storage tool in a bear market by comparing the market value, endorsement mechanism, transparency, and comprehensively combining common views on the Internet, and explain this analysis process.
