Remove all white space in a file and replace them with a comma using Vim

Question

Anyone has an idea how to remove all white space and replace them with a comma , in a file using Vim ? File input example (words could be everywhere !):

Answer 1

If the file contains n number of line and contains spaces at the start of each line, end of each line and in between. And you want to remove spaces at start and end and replace in between multiple spaces with a comma ",". And also redirect the output and save to a new file keeping the original file as it is.

Use the following command -

sed -e 's/^[ \t]*// ; s/[[:blank:]]*$// ; s/\s\+/,/g ; s/,$//' input-file-name | tee output-file-name

give paths of the input file name if not in the same directory.

or you can write all these -

"s/^[ \t]*//
s/[[:blank:]]*$//
s/\s\+/,/g ; s/,$//"

in a txt file save it. and use -f option.

so the command becomes -

sed -f commands.txt input-file-name.txt | tee output-file-name.txt

commnads.txt contains the above conditions of sed command