fold

Wrap each line in an input file to fit a specified width and print it to stdout. More information: https://manned.org/fold.1p.

• Wrap each line to default width (80 characters):

fold path/to/file

• Wrap each line to width "30":

fold -w30 path/to/file

• Wrap each line to width "5" and break the line at spaces (puts each space separated word in a new line, words with length > 5 are wrapped):

fold -w5 -s path/to/file