如何通过计算字符来拆分文本文件并找到 30 到 40 个字符之间的空格（不分隔单词）

Question

This command splits text file by 30 characters. It also divide words but I need help for split text without divide the word find space between 30 and 40 after that split text file.

sed -e 's/.\{30\}/&\n/g' filename

Answer 1

Better use a proper lib, like in perl . The name for this is text wraping :

perl -MText::Wrap -lne '
    $Text::Wrap::columns = 30;
    print wrap("", "", $_)
' file