无法正确处理转义字符

[tkgs0]

报告清单

• [X] 我已仔细阅读并了解上述注意事项。
• [X] 我已使用最新版本测试过，确认问题依旧存在。
• [X] 我确定在 GitHub Issues 中没有相同或相似的问题。

nonebot-plugin-system-command

1.1.2

client

go-cqhttp 1.1.0

nonebot-adapter

onebot 2.4.4

nonebot

2.3.2

Python

3.11

操作系统

ubuntu 22.04

列出安装的 Python 包

No response

问题描述

无法正确处理消息中的 "\n" "\t" 等转义字符

复现步骤

期望行为

发送

/sh echo "a\nb"

输出

a
b

实际行为

发送

/sh echo "a\nb"

输出

a\nb

日志信息

额外补充

No response

[tkgs0]

[tkgs0]

This is not a bug.

ECHO(1)                            User Commands                           ECHO(1)

NAME
       echo - display a line of text

SYNOPSIS
       echo [SHORT-OPTION]... [STRING]...
       echo LONG-OPTION

DESCRIPTION
       Echo the STRING(s) to standard output.

       -n     do not output the trailing newline

       -e     enable interpretation of backslash escapes

       -E     disable interpretation of backslash escapes (default)

       --help display this help and exit

       --version
              output version information and exit

       If -e is in effect, the following sequences are recognized:

       \\     backslash

       \a     alert (BEL)

       \b     backspace

       \c     produce no further output

       \e     escape

       \f     form feed

       \n     new line

       \r     carriage return

       \t     horizontal tab

       \v     vertical tab

       \0NNN  byte with octal value NNN (1 to 3 digits)

       \xHH   byte with hexadecimal value HH (1 to 2 digits)

       Your  shell  may have its own version of echo, which usually supersedes the
       version described here.  Please refer to your shell's documentation for de‐
       tails about the options it supports.

       Consider using the 'printf' command instead, as  it  avoids  problems  when
       outputting option-like strings.

AUTHOR
       Written by Brian Fox and Chet Ramey.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2024  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
       printf(1)

       Full documentation <https://www.gnu.org/software/coreutils/echo>
       or available locally via: info '(coreutils) echo invocation'

GNU coreutils 9.5                   March 2024                             ECHO(1)