Line Counting

A common metric used in software development is lines of code. While it’s not always a useful metric, it’s sometimes nice to know just how large a project is. I have a script I use to count lines of code in a folder. It will iterate through a variety of common file extensions and count all lines of code excluding blank lines. It’s written using sh, so it works on Unix, Linux, or MacOS, and should work on Windows if you have the Bash subsystem installed.


# add additional extensions here
extensions=(bas c cc cob cpp cs cshtml fth f90 go h html java js jsp m pas php pl py sc sh sql ts xhtml)

for extension in ${extensions[@]}
  lines=`find . -name "*.$extension" -type f -exec cat {} \; | tr -d '[:blank:]' 2> /dev/null | grep -v '^$' | wc -l `
  if [ $lines -ne 0 ]
    echo $extension: $lines

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