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# Bash 的 fold 命令

fold [OPTION]... [FILE]...

!subtitle:功能

自动换行以适应宽度。

!subtitle:类型

可执行文件（/usr/bin/fold），属于 coreutils。

!subtitle: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)

本文更新于: 2025-11-27 09:38:14 创建于: 2025-11-27 09:38:14