fold

Folds long lines for fixed-width output devices. More information: https://www.gnu.org/software/coreutils/manual/html_node/fold-invocation.html.

• Fold lines in a fixed width:

fold --width width path/to/file

• Count width in bytes (the default is to count in columns):

fold --bytes --width width_in_bytes path/to/file

• Break the line after the rightmost blank within the width limit:

fold --spaces --width width path/to/file