Issue
I've seen it being done using sed (if you'd be so kind to write how to do it in sed and explain the regex behind it, I will appreciate it too), but I'd like to know how to do it using tr.
My idea was: cat file|tr -d ^'\n' or ^\n, but the first one deleted every '\n', the second one none.
Solution
tr on linux, at least, can squeeze repeated characters:
echo -ne $a
the quick
brown fox
jumps over
echo -ne $a |tr -s '\n'
the quick
brown fox
jumps over
Answered By - stark Answer Checked By - David Marino (WPSolving Volunteer)