Linux common command manual-LINUX-php.cn

Linux common command manual

WBOY

Release： 2024-02-18 14:12:23

Original

597 people have browsed it

Comprehensive list of commonly used Linux commands, specific code examples are required

1. Introduction

As a free and open source operating system, Linux has become the platform of choice for many developers and system administrators. Whether in server rental, website building, software development or daily use, familiarity with common Linux commands is essential. This article will introduce some commonly used Linux commands in detail and provide specific code examples.

2. File and directory operations

Create directory (directory name newdir)
```
mkdir newdir
```
Copy after login
Delete directory (directory name is olddir)
```
rmdir olddir
```
Copy after login
Enter the directory (the directory name is mydir)
```
cd mydir
```
Copy after login
Display the current directory
```
pwd
```
Copy after login
Display all files and directories in the current directory
```
ls
```
Copy after login
Copy files (copy file file1 to directory dir1)
```
cp file1 dir1
```
Copy after login
Delete file (delete file file1)
```
rm file1
```
Copy after login
Move file (move file file1 to directory dir1)
```
mv file1 dir1
```
Copy after login
Find file (find file File whose name contains test)
```
find / -name "test"
```
Copy after login

3. File content operation

Display file content (display the content of file file1)
```
cat file1
```
Copy after login
Display the first n lines of the file (display the first 10 lines of the file file1)
```
head -n 10 file1
```
Copy after login
Display the last n lines of the file (display the last 10 lines of the file file1 Line)
```
tail -n 10 file1
```
Copy after login
Find the line containing a certain keyword in the file (find the line containing "hello" in the file file1)
```
grep "hello" file1
```
Copy after login
Statistics on the number of lines, words and characters of the file (statistics on the number of lines, words and characters of the file file1)
```
wc file1
```
Copy after login

4. System Management

Shutdown
```
shutdown -h now
```
Copy after login
Restart
```
reboot
```
Copy after login
Check the system version
```
cat /etc/*-release
```
Copy after login
Check the system time
```
date
```
Copy after login
Check the system load
```
uptime
```
Copy after login

5. Network operation

View the IP address (View IP address of network interface eth0)
```
ifconfig eth0
```
Copy after login
Test network connection (test connectivity to target host)
```
ping target.com
```
Copy after login
Download file (from URL url download file)
```
wget url
```
Copy after login
Upload file (upload file file1 to the remote host)
```
scp file1 remoteuser@remotehost:/path/to/destination
```
Copy after login
Port monitoring (view all open files in the system Port)
```
netstat -tuln
```
Copy after login

6. Permission management

Modify file permissions (modify the owner permissions of file file1 to read and write)
```
chmod 600 file1
```
Copy after login
Modify the file owner (change the owner of file file1 to user1)
```
chown user1 file1
```
Copy after login
Modify the group to which the file belongs (change the owner of file file1 Group modified to group1)
```
chgrp group1 file1
```
Copy after login
View file permissions and owners
```
ls -l file1
```
Copy after login

7. Process Management

View all processes
```
ps -ef
```
Copy after login
End the process (end the process with process PID 1234)
```
kill 1234
```
Copy after login
Run the program in the background (change the program prog1 Put it into the background to run)
```
prog1 &
```
Copy after login
Check the CPU and memory usage of the process
```
top
```
Copy after login

The above are some commonly used Linux command examples, I hope they can Help you better master the Linux operating system. Of course, Linux is very powerful, and there are many other commands and usages that can be further explored and learned.

The above is the detailed content of Linux common command manual. For more information, please follow other related articles on the PHP Chinese website!