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Count lines of all files with specified file extension

/ Published in: Bash
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The progress bar snippet found on this site was used. This counts all lines and files in working directory for specified file extension. I am no pro at bash, just a beginner. I'm sure it can be done better but still useful.

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  1. countLines() {
  2.  
  3. 	if [ $# -ne 1 ]; then
  4. 		echo "Usage: countLines <file extension>"
  5. 		return
  6. 	fi
  7.  
  8. 	N=0
  9. 	CURRENT=0
  10. 	INCREMENTS=5
  11. 	FILES=` find . -type f -name "*.$1" | wc -l `
  12. 	FOO=">"
  13. 	BAR=""
  14.  
  15. 	find . -type f -name "*.$1" -print |
  16. 	while read file; do
  17.  
  18. 		LINES=` wc -l $file | awk '{print $1}' `
  19. 		N=$(( $N + $LINES ))
  20. 		CURRENT=$(( $CURRENT + 1 ))		
  21. 		PERCENT=$(( $CURRENT * 100 / $FILES))
  22.  
  23. 		if [ $(( $PERCENT - $INCREMENTS )) -gt 5 ]; then
  24. 			INCREMENTS=$(( $INCREMENTS + 5 ))
  25. 			BAR="${BAR}="
  26. 		fi
  27. 		echo -ne "\r\t[ "
  28. 		echo -ne "${BAR}${FOO} ] ${PERCENT}% "
  29.  
  30. 		if [ $CURRENT -eq $FILES ]; then
  31. 			echo "complete!"
  32. 			echo
  33. 			echo " File extension.... $1"
  34. 			echo " File count ....... $FILES files"
  35. 			echo " Line count ....... $N lines"
  36. 			echo
  37. 		fi
  38. 	done
  39.  
  40. }

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