Convert any sequence of spaces/tabs to single space/tab

tr -s ' \t' <1.txt >2.txt
Remove empty lines additionally: tr -s ' \t\n' <1.txt >2.txt identical with: tr -s '[:space:]' <1.txt >2.txt To "clean perfectly" a text or code file, You can combine this command with another one: while read l; do echo -e "$l"; done <1.txt >2.txt (= remove all leading and trailing spaces or tabs from all lines of a text file)

By: knoppix5
2012-12-19 07:36:00

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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