Operation and Maintenance
Linux Operation and Maintenance
How debian readdir integrates with other tools
How debian readdir integrates with other tools
Apr 13, 2025 am 09:42 AM
The readdir function in the Debian system is a system call used to read directory contents and is often used in C programming. This article will explain how to integrate readdir with other tools to enhance its functionality.
Method 1: Combining C language programs and pipelines
First, write a C program to call the readdir function and output the result:
#include<stdio.h>
#include<stdlib.h>
#include<dirent.h>
int main(int argc, char *argv[]) {
DIR *dir;
struct dirent *entry;
if (argc != 2) {
fprintf(stderr, "Usage: %s<directory> \n", argv[0]);
return EXIT_FAILURE;
}
dir = opendir(argv[1]);
if (dir == NULL) {
perror("opendir");
return EXIT_FAILURE;
}
while ((entry = readdir(dir)) != NULL) {
printf("%s\n", entry->d_name);
}
closedir(dir);
return EXIT_SUCCESS;
}</directory></dirent.h></stdlib.h></stdio.h>
Compile the program (assuming the file name is readdir_example.c ): gcc -o readdir_example readdir_example.c
Then, use a pipeline to pass the output to other tools, such as grep :
./readdir_example /path/to/directory | grep "\.txt$"
This will only display files ending in .txt under the /path/to/directory directory.
Method 2: Shell script automation
Create a shell script (for example process_directory.sh ):
#!/bin/bash
if [ $# -ne 1 ]; then
echo "Usage: $0<directory> "
exit 1
fi
for file in $(./readdir_example "$1"); do
echo "Processing: $file"
#Add the actions you want to perform on each file here, for example:
# if [ -f "$file" ]; then # Check if it is a file# echo "$file is a file"
# fi
done</directory>
Grant script execution permissions: chmod x process_directory.sh
Run the script: ./process_directory.sh /path/to/directory
Method 3: Python scripts
Using Python can more conveniently handle the output of readdir :
import os
import sys
def list_directory(path):
for entry in os.listdir(path):
print(entry)
if __name__ == "__main__":
if len(sys.argv) != 2:
print("Usage: python list_directory.py<directory> ")
sys.exit(1)
list_directory(sys.argv[1])</directory>
Run the script: python list_directory.py /path/to/directory
Through the above methods, you can flexibly integrate readdir with other tools or scripts to achieve more powerful directory operation functions. Remember to replace /path/to/directory as your actual directory path.
The above is the detailed content of How debian readdir integrates with other tools. 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
What is Ethereum? What are the ways to obtain Ethereum ETH?
Jul 31, 2025 pm 11:00 PM
Ethereum is a decentralized application platform based on smart contracts, and its native token ETH can be obtained in a variety of ways. 1. Register an account through centralized platforms such as Binance and Ouyiok, complete KYC certification and purchase ETH with stablecoins; 2. Connect to digital storage through decentralized platforms, and directly exchange ETH with stablecoins or other tokens; 3. Participate in network pledge, and you can choose independent pledge (requires 32 ETH), liquid pledge services or one-click pledge on the centralized platform to obtain rewards; 4. Earn ETH by providing services to Web3 projects, completing tasks or obtaining airdrops. It is recommended that beginners start from mainstream centralized platforms, gradually transition to decentralized methods, and always attach importance to asset security and independent research, to
What are the websites for real-time price query of Bitcoin? Recommended websites that can view Bitcoin K-line and depth chart
Jul 31, 2025 pm 10:54 PM
In the digital currency market, real-time mastering of Bitcoin prices and transaction in-depth information is a must-have skill for every investor. Viewing accurate K-line charts and depth charts can help judge the power of buying and selling, capture market changes, and improve the scientific nature of investment decisions.
How to check the main trends of beginners in the currency circle
Jul 31, 2025 pm 09:45 PM
Identifying the trend of the main capital can significantly improve the quality of investment decisions. Its core value lies in trend prediction, support/pressure position verification and sector rotation precursor; 1. Track the net inflow direction, trading ratio imbalance and market price order cluster through large-scale transaction data; 2. Use the on-chain giant whale address to analyze position changes, exchange inflows and position costs; 3. Capture derivative market signals such as futures open contracts, long-short position ratios and liquidated risk zones; in actual combat, trends are confirmed according to the four-step method: technical resonance, exchange flow, derivative indicators and market sentiment extreme value; the main force often adopts a three-step harvesting strategy: sweeping and manufacturing FOMO, KOL collaboratively shouting orders, and short-selling backhand shorting; novices should take risk aversion actions: when the main force's net outflow exceeds $15 million, reduce positions by 50%, and large-scale selling orders
Ethereum ETH latest price APP ETH latest price trend chart analysis software
Jul 31, 2025 pm 10:27 PM
1. Download and install the application through the official recommended channel to ensure safety; 2. Access the designated download address to complete the file acquisition; 3. Ignore the device safety reminder and complete the installation as prompts; 4. You can refer to the data of mainstream platforms such as Huobi HTX and Ouyi OK for market comparison; the APP provides real-time market tracking, professional charting tools, price warning and market information aggregation functions; when analyzing trends, long-term trend judgment, technical indicator application, trading volume changes and fundamental information; when choosing software, you should pay attention to data authority, interface friendliness and comprehensive functions to improve analysis efficiency and decision-making accuracy.
BTC digital currency account registration tutorial: Complete account opening in three steps
Jul 31, 2025 pm 10:42 PM
First, select well-known platforms such as Binance Binance or Ouyi OKX, and prepare your email and mobile phone number; 1. Visit the official website of the platform and click to register, enter your email or mobile phone number and set a high-strength password; 2. Submit information after agreeing to the terms of service, and complete account activation through the email or mobile phone verification code; 3. After logging in, complete identity authentication (KYC), enable secondary verification (2FA), and regularly check security settings to ensure account security. After completing the above steps, you can successfully create a BTC digital currency account.
btc trading platform latest version app download 5.0.5 btc trading platform official website APP download link
Aug 01, 2025 pm 11:30 PM
1. First, ensure that the device network is stable and has sufficient storage space; 2. Download it through the official download address [adid]fbd7939d674997cdb4692d34de8633c4[/adid]; 3. Complete the installation according to the device prompts, and the official channel is safe and reliable; 4. After the installation is completed, you can experience professional trading services comparable to HTX and Ouyi platforms; the new version 5.0.5 feature highlights include: 1. Optimize the user interface, and the operation is more intuitive and convenient; 2. Improve transaction performance and reduce delays and slippages; 3. Enhance security protection and adopt advanced encryption technology; 4. Add a variety of new technical analysis chart tools; pay attention to: 1. Properly keep the account password to avoid logging in on public devices; 2.
Stablecoin purchasing channel broad spot
Jul 31, 2025 pm 10:30 PM
Binance provides bank transfers, credit cards, P2P and other methods to purchase USDT, USDC and other stablecoins, with fiat currency entrance and high security; 2. Ouyi OKX supports credit cards, bank cards and third-party payment to purchase stablecoins, and provides OTC and P2P transaction services; 3. Sesame Open Gate.io can purchase stablecoins through fiat currency channels and P2P transactions, supporting multiple fiat currency recharges and convenient operation; 4. Huobi provides fiat currency trading area and P2P market to purchase stablecoins, with strict risk control and high-quality customer service; 5. KuCoin supports credit cards and bank transfers to purchase stablecoins, with diverse P2P transactions and friendly interfaces; 6. Kraken supports ACH, SEPA and other bank transfer methods to purchase stablecoins, with high security
USDT virtual currency purchase process USDT transaction detailed complete guide
Aug 01, 2025 pm 11:33 PM
First, choose a reputable trading platform such as Binance, Ouyi, Huobi or Damen Exchange; 1. Register an account and set a strong password; 2. Complete identity verification (KYC) and submit real documents; 3. Select the appropriate merchant to purchase USDT and complete payment through C2C transactions; 4. Enable two-factor identity verification, set a capital password and regularly check account activities to ensure security. The entire process needs to be operated on the official platform to prevent phishing, and finally complete the purchase and security management of USDT.
