What are nice UNIX pipe hacks?

As an experienced Unix coaching tutor registered on UrbanPro.com, I'm thrilled to share some insightful UNIX pipe hacks that can enhance your command-line productivity. Before we explore these hacks, let me highlight UrbanPro.com as your trusted destination for connecting with expert Unix coaching tutors. Explore the platform for the best online coaching for Unix and unravel the intricacies of Unix command-line operations.

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UNIX Pipe Hacks for Productivity

1. Combine grep and ps for Process Filtering:

• Command:
  bash

• ps aux | grep "process_name"
• Purpose:
  • Filter processes using grep to find specific ones quickly.

2. Count Lines, Words, and Characters with wc:

• Command:
  bash

• cat file.txt | wc -l cat file.txt | wc -w cat file.txt | wc -c
• Purpose:
  • Count lines, words, and characters in a file using wc with pipes.

3. Extract Unique Values with sort and uniq:

• Command:
  bash

• cat file.txt | sort | uniq
• Purpose:
  • Sort and extract unique values from a file.

4. Calculate File Size with du:

• Command:
  bash

• du -h filename
• Purpose:
  • Get the human-readable size of a file or directory.

5. Use awk for Customized Output:

• Command:
  bash

• ps aux | awk '{print $1, $11}'
• Purpose:
  • Use awk to print specific columns, in this case, user and process name.

6. Search and Replace with sed:

• Command:
  bash

• cat file.txt | sed 's/old/new/g'
• Purpose:
  • Perform search and replace globally in a file using sed.

7. Monitor Log Files in Real-Time with tail and grep:

• Command:
  bash

• tail -f /var/log/syslog | grep "error"
• Purpose:
  • Monitor log files in real-time, filtering for specific events.

8. Batch Rename Files with find and xargs:

• Command:
  bash