#Bash 的 fold 命令
fold [OPTION]... [FILE]...
功能
自动换行以适应宽度。
类型
可执行文件(/usr/bin/fold),属于 coreutils。
参数
OPTION选项:-b,--bytes- 计算字节数而不是列数-s,--spaces- 在空格处换行-w,--width=WIDTH- 行的宽度;默认为 80--help- 显示帮助--version- 显示版本
FILE文件列表;如果没有这个参数或指定为-,则读取标准输入
#示例
$ echo 'Primers 编程伙伴 https://xplanc.org/primers/' | fold -w 20
Primers 编程伙伴
https://xplanc.org/
primers/
#推荐阅读
#手册
FOLD(1) User Commands FOLD(1) NAME fold - wrap each input line to fit in specified width SYNOPSIS fold [OPTION]... [FILE]... DESCRIPTION Wrap input lines in each FILE, writing to standard output. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -b, --bytes count bytes rather than columns -s, --spaces break at spaces -w, --width=WIDTH use WIDTH columns instead of 80 --help display this help and exit --version output version information and exit AUTHOR Written by David MacKenzie. REPORTING BUGS GNU coreutils online help: <https://www.gnu.org/software/coreutils/> Report any translation bugs to <https://translationproject.org/team/> COPYRIGHT Copyright © 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO fmt(1) Full documentation <https://www.gnu.org/software/coreutils/fold> or available locally via: info '(coreutils) fold invocation' GNU coreutils 9.4 April 2024 FOLD(1)