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wb9688
Asked: 2015-07-13 05:40:15 +0800 CST

How do I remove comments of files?

  • 772

I have a dir with many files. I want to remove all the comments of that files. How do I do that?

The files looks like this (everything what is between the /* and the */ are comment):

/* */ import java.util.ArrayList;

command-line

2 Answers

  1. Best Answer

    Copy your files somewhere else first. If as in your example the comment is on one line do

    for file in *.java
do 
   sed -i 's|/\*[^/]*\*/||g' "$file"
done
    • 2

  2. Since they are always on a single line and multiple occurences on the same line seem to be excluded:

    for f in *.java; do sed -i 's/\/\*[^*]*\*\/ \?//' "$f"; done

    However, in case of multiple occurences on the same line:

    for f in *.java; do sed 's/\/\*[^*]*\*\/ \?//g' "$f"; done
    • 0