Do you notice the large space used up on your system? Does it affect your Mac’s performance? It could be the system logs clogging up the entire OS. System files are meant to be usable and helpful however they build up over time, clogging and taking more space on the Mac which can be an inconvenience to most users. Then you should learn how to 刪除Mac上的系統日誌文件 in this article below, we have compiled all the important information needed including how does it affect the entire operating system and the steps on how to manually and automatically delete the system log files.

文章指南Part 1. Is It Safe to Delete Log File on Mac?第2部分。系統日誌文件位於何處?Part 3. How Do I Delete System Log Files on Mac?部分4。 概要

Part 1. Is It Safe to Delete Log File on Mac?

What is System Log File on Mac?

All Mac has the system log files. The system logs files is used to capture and save the activities of system applications, problems, internal errors, and other services on the Mac which can be sent to developers for debugging purposes. It usually happens when an application crashes.

The system log file is typically smaller files that accumulate a lot of information that takes up tons of space. However, you can clean up system logs maintain app performance, and save some space on your Mac.

Most users are asking if it is safe to delete system log files on Mac all by themselves. Well, we recommend that you should open the log messages first to see if there are programs going crazy and not performing on your Mac. If you have not reported a crashing incident then you can easily delete system log file on Mac by proceeding to the next parts below. On the other hand, if you have reported a crashing incident, then you have to better wait for the developers to finish their debugging processor until they tell you to do so.


只需按照以下步驟操作,即可輕鬆找到MacOS Sierra,OS X El Capitan和OS X Yosemite上的系統日誌文件:

  1. 在Mac上啟動Finder
  2. 輸入:〜/ Library / Logs或/ var / log文件夾

Where Are System Log Files Located?

You will now see the entire system log files on your Mac. Or you can just make use of iMyMac Mac Cleaner that will be mentioned in Part 3 to scan and find where are your system log files stored.


Use Console to Locate System Log Files

控制台 is usually used to view the log messages that were accumulated and collected by Mac and as well as other connected devices. All other communication failures, errors, texts, messages, and system events are also stored inside the Console. If there are issues with the system, you can view the console or the log activities. Other connected devices include iPhone, iPad, Apple Watch, and Apple TV.


  • 紅色故障
  • 黃色 - 錯誤
  • 淺灰色 - 信息日誌消息
  • 深灰色 - 調試日誌消息

Use Console to Locate System Log Files

您可以在控制台中查看日誌消息或活動以檢查給定項目的狀態。 如果您正在尋找特定的日誌消息,您只需按下Command-F它就會為您提供所需的項目。

請注意: 如果沒有彩色點,那麼它是默認的日誌消息類型

Part 3. How Do I Delete System Log Files on Mac?

你可以手動 刪除Mac上的系統日誌文件 或者你可以安裝 iMyMac清機 自動清理整個文件而不會給自己帶來壓力。

Automatically Delete with iMyMac Mac Cleaner

To better and safely delete system log files on Mac, you need iMyMac Mac Cleaner to ensure that the important files are not deleted. Remember that some files are important so if you are not familiar with how to do it then we recommend that you do automatically use iMyMac Mac Cleaner 消除任何不必要的場景和問題。


Follow these steps on how to use iMyMac Mac Cleaner to delete system log files on Mac:

  1. Download iMyMac Mac Cleaner, follow the onscreen prompts.
  2. Launch the program and check the system status. Select System Junk on the left side panel menus and click on the Scan button.
  3. Review the items and select the desired log files you want to delete. You can also click Re-scan if needed.
  4. Click the Clean button to delete system log files on Mac. All unnecessary files will be deleted.


iMyMac Mac 清潔器 also includes cleaning application cache, system cache, user logs, trash bin, and more. It scans the status of the Mac including the disk usage, CPU, memory usage, and you can also free up the memory usage or disk space after scanning. It is safe to use and easily cleans up and speeds up your Mac at any time.


Manually Delete Delete System Log Files on Mac:


  1. 在Mac上啟動Finder
  2. 輸入:〜/ Library / Logs或/ var / log文件夾
  3. 突出顯示所有文件,然後按“Command + backspace”
  4. 重啟Mac

而已! 您現在已經清理了系統日誌文件。


  • 僅刪除文件夾內的文件,但不刪除文件夾本身。 某些應用程序的系統日誌文件可能位於Mac內部的某個位置,如Mail。
  • After manually delete system log files on Mac, and if you want to free some space on your Mac, you can also clean up the Trash folder
  • 某些文件存儲在/ var / log中,但並非所有內部日誌都可以安全刪除。

部分4。 概要

You have just learned how to save up a decent amount of space on your Mac by following our suggested methods above. To ensure that your Mac works on its optimum performance, check and view the system log files for the total accumulated space which can alter its speed.

You can delete system log files on Mac using two options: manually by accessing the system log files folder itself or by using an effective Mac cleaner for auto-cleaning. 至於我們,我們強烈建議,為了更好,更安全的清理,使用 iMyMac Mac Cleaner. It will scan, sort and clean the system log files without removing the important ones. This will help you save more time and fewer hassles too!