Mastering Advanced Linux Commands for Professional Users

As a Linux professional, you already know the basics. You’ve navigated the file system, managed files and directories, and used basic text editors. Now, it’s time to delve into more advanced commands and tools that will enhance your productivity and allow you to manage your system more efficiently. In this blog post, we’ll explore advanced Linux commands that every professional should know.

Certainly! Here is a comprehensive list of 20 advanced Linux commands that every professional should know, along with their descriptions and usage examples:

1. awk

A powerful text processing tool.

• Print specific columns:

    awk '{print $1, $3}' file.txt
  

2. sed

Stream editor for filtering and transforming text.

• Replace text:

    sed 's/old-text/new-text/g' file.txt
  

3. ip

Show and manipulate routing, devices, and tunnels.

• Display IP addresses:

    ip addr show
  

4. netstat

Displays network connections, routing tables, and more.

• Display all network connections:

    netstat -a
  

5. htop

Interactive process viewer.

• Launch htop:

    htop
  

6. iotop

Monitor I/O usage by processes.

• Launch iotop:

    sudo iotop
  

7. df

Reports the amount of disk space used and available.

• Display disk space usage:

    df -h
  

8. du

Estimates file space usage.

• Display disk usage of a directory:

    du -sh /path/to/directory
  

9. ps

Reports a snapshot of the current processes.

• List all running processes:

    ps aux
  

10. kill

Terminates processes.

• Terminate a process by PID:

    kill -9 PID
  

11. grep

Searches for patterns in files.

• Search for a pattern:

    grep 'pattern' file.txt
  

12. sort

Sorts lines of text files.

• Sort a file alphabetically:

    sort file.txt
  

13. find

Searches for files in a directory hierarchy.

• Find files by name:

    find /path -name 'filename'
  

14. chmod

Changes file modes or Access Control Lists.

• Change file permissions:

    chmod 755 script.sh
  

15. chown

Changes file owner and group.

• Change ownership:

    chown user:group file.txt
  

16. tar

Archives files.

• Create a tarball:

    tar -cvf archive.tar /path/to/directory
  

17. gzip

Compresses files.

• Compress a file:

    gzip file.txt
  

18. scp

Secure copy (remote file copy program).

• Copy files to a remote server:

    scp file.txt user@remote:/path/to/destination
  

19. rsync

Remote file and directory synchronization.

• Synchronize directories:

    rsync -av /source/directory/ /destination/directory/
  

20. cron

Schedules tasks to run at specified times.

• Edit the crontab:

    crontab -e
  

These commands will help you perform a wide range of tasks, from text processing and system monitoring to file manipulation and network management, making you a more proficient Linux professional.

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