在Ubuntu 16.04安装Apache Tomcat 8时执行curl下载解压命令报错求助

Hey there, let's work through fixing that extraction error you ran into while setting up Tomcat 8 on Ubuntu 16.04. I've debugged similar issues plenty of times, so let's break down the most common causes and fixes step by step:

1. Verify the Downloaded Package Isn't Corrupted #

Half-downloaded or corrupted archives are the #1 culprit for extraction failures. Here's how to check:

• First, grab the official checksum for your Tomcat 8 version (you can find this on the Apache Tomcat archive page for your release).
• Run this command to calculate the checksum of your local file:

  md5sum apache-tomcat-8.*.tar.gz
  

• Compare the output with the official checksum. If they don't match, re-download the package with curl's resume feature to avoid interruptions:

  curl -C - -O [Tomcat 8 archive URL]
  

  Note: Replace [Tomcat 8 archive URL] with the actual link you used earlier.

2. Double-Check Your Extraction Command #

Make sure you're using the right tar flags for your archive type:

• For .tar.gz files (most Tomcat releases), use:

  tar -xzf apache-tomcat-8.*.tar.gz
  

• If you downloaded a .tar.bz2 file, swap the z flag for j:

  tar -xjf apache-tomcat-8.*.tar.bz2
  

Missing or incorrect flags (like forgetting z for gzip) will throw extraction errors every time.

3. Check Directory Permissions #

If you're trying to extract to a system directory like /opt or /usr/local, you'll need elevated privileges. Run the extraction command with sudo:

sudo tar -xzf apache-tomcat-8.*.tar.gz -C /opt/

The -C flag tells tar to extract directly to the specified directory (in this case, /opt). Without sudo, regular users don't have write access to these system paths.

4. Ensure You Have Enough Disk Space #

A full disk will cause extraction to fail abruptly. Check your available space with:

df -h

Look at the Avail column for the partition where you're extracting the files. If space is tight, free up some room (delete old logs, unused packages) or extract to a different directory with more space.

5. Confirm the tar Utility Is Installed #

While Ubuntu 16.04 comes with tar pre-installed, it's possible it was removed accidentally. Verify it's present with:

which tar

If you get no output, install it with:

sudo apt-get update && sudo apt-get install tar

If none of these steps fix your issue, feel free to share the exact error message you're seeing—specific error text makes it way easier to pinpoint the problem!

内容的提问来源于stack exchange，提问作者Ramon De Les Olives