Java和Linux腳本操作:檔案壓縮和解壓縮
概述:
檔案壓縮和解壓縮是我們在日常電腦操作中經常遇到的任務。無論是在Java程式中還是在Linux環境下的腳本中,檔案壓縮和解壓都是非常常見的需求。在本文中,將介紹如何使用Java和Linux腳本來實作檔案的壓縮和解壓操作,並給出具體的程式碼範例。
一、Java實作檔案壓縮和解壓縮:
Java提供了一系列用於檔案壓縮和解壓縮的類別和方法。以下是使用Java進行檔案壓縮和解壓縮的範例程式碼:
import java.io.*; import java.util.zip.*; public class FileCompression { public static void compress(File source, File destination) throws IOException { FileInputStream fis = new FileInputStream(source); FileOutputStream fos = new FileOutputStream(destination); ZipOutputStream zos = new ZipOutputStream(fos); zos.putNextEntry(new ZipEntry(source.getName())); byte[] buffer = new byte[1024]; int length; while ((length = fis.read(buffer)) > 0) { zos.write(buffer, 0, length); } zos.closeEntry(); zos.close(); fis.close(); fos.close(); } public static void main(String[] args) { File source = new File("path/to/source/file"); File destination = new File("path/to/destination/file.zip"); try { compress(source, destination); System.out.println("File compression completed successfully."); } catch (IOException e) { e.printStackTrace(); } } }
import java.io.*; import java.util.zip.*; public class FileDecompression { public static void decompress(File source, File destination) throws IOException { FileInputStream fis = new FileInputStream(source); ZipInputStream zis = new ZipInputStream(fis); FileOutputStream fos = new FileOutputStream(destination); ZipEntry entry = zis.getNextEntry(); byte[] buffer = new byte[1024]; int length; while ((length = zis.read(buffer)) > 0) { fos.write(buffer, 0, length); } zis.closeEntry(); zis.close(); fis.close(); fos.close(); } public static void main(String[] args) { File source = new File("path/to/source/file.zip"); File destination = new File("path/to/destination/file"); try { decompress(source, destination); System.out.println("File decompression completed successfully."); } catch (IOException e) { e.printStackTrace(); } } }
二、Linux腳本實作檔案壓縮和解壓縮:
在Linux環境下,我們可以使用shell腳本來實現檔案的壓縮和解壓縮。以下是使用Linux shell腳本進行檔案壓縮和解壓縮的範例程式碼:
#!/bin/bash source="path/to/source/file" destination="path/to/destination/file.tar.gz" tar -czf $destination $source echo "File compression completed successfully."
#!/bin/bash source="path/to/source/file.tar.gz" destination="path/to/destination/file" tar -xzf $source -C $destination echo "File decompression completed successfully."
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