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python - 如何在python3中将字节控制台转换为字符串？

问题描述

我有 python 脚本，它保存我的 ssh 会话中的所有数据

import os
import pty

out = open('output.txt', 'w')


def read(fd):
    data = os.read(fd, 1024)
    out.write(data.decode('utf-8', 'ignore'))
    return data


pty.spawn('./script.sh', read)
out.close()

 
#!/usr/bin/env bash
ssh root@admin

我想在 output.txt 中得到类似的东西

root@admin:~# 顶
顶部 - 15:15:01 21 天，5:00，1 个用户，平均负载：0.00、0.00、0.00
任务：共 185 个，运行 1 个，睡眠 184 个，停止 0 个，僵尸 0 个
%Cpu(s): 0.1 us, 0.0 sy, 0.0 ni, 99.9 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB 内存：总计 2047952，170368 免费，327540 已使用，1550044 buff/cache
KiB 交换：总共 0 个，免费 0 个，已使用 0 个。1373184 利用内存

  PID 用户 PR NI VIRT RES SHR S %CPU %MEM TIME+ 命令     
    1 根 20 0 185396 6044 4020 S 0.0 0.3 0:23.03 systemd     
    2根20 0 0 0 0 S 0.0 0.0 0:00.06 kthreadd    
    3 根 20 0 0 0 0 S 0.0 0.0 0:00.98 ksoftirqd/0
    5 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
    7 根 20 0 0 0 0 S 0.0 0.0 3:41.59 rcu_sched   
    8根20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh      
    9 根 rt 0 0 0 0 S 0.0 0.0 0:01.01 迁移/0
   10 根 rt 0 0 0 0 S 0.0 0.0 0:06.50 看门狗/0  
   11 根 rt 0 0 0 0 S 0.0 0.0 0:06.96 看门狗/1  
   12 根 rt 0 0 0 0 S 0.0 0.0 0:00.86 迁移/1
   13 根 20 0 0 0 0 S 0.0 0.0 0:02.11 ksoftirqd/1
   15 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:+
   17 根 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs   
   18根0 -20 0 0 0 S 0.0 0.0 0:00.00 netns       
   19 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 性能        
   20 根 20 0 0 0 0 S 0.0 0.0 0:00.00 khungtaskd  
   21 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 回写   

root@admin:~# 退出

但我明白了

]0;root@admin: ~root@admin:~# ex[K[Ktop
[?1h=[?25l[H[2J(B[mtop - 15:15:01 up 21 days, 5:00, 1 user, load average: 0.00, 0.00, 0.00(B[m[39;49m(B [米[39;49米[K
任务：(B[m[39;49m[1m 185 (B[m[39;49mtotal,(B[m[39;49m[1m 1 (B[m[39;49mrunning,(B[m[39;49m [1m 184 (B[m[39;49msleeping,(B[m[39;49m[1m 0 (B[m[39;49mstopped,(B[m[39;49m[1m 0 (B[m[39; 49mzombie(B[m[39;49m(B[m[39;49m[K
%Cpu(s):(B[m[39;49m[1m 0.1 (B[m[39;49mus,(B[m[39;49m[1m 0.0(B[m[39;49msy,(B[m [39;49m[1m 0.0 (B[m[39;49mni,(B[m[39;49m[1m 99.9(B[m[39;49mid,(B[m[39;49m[1m 0.0(B[ m[39;49mwa,(B[m[39;49m[1m 0.0 (B[m[39;49mhi,(B[m[39;49m[1m 0.0(B[m[39;49msi,(B[m [39;49m[1m 0.0 (B[m[39;49mst(B[m[39;49m(B[m[39;49m[K
KiB Mem :(B[m[39;49m[1m 2047952 (B[m[39;49mtotal,(B[m[39;49m[1m 170368 (B[m[39;49mfree,(B[m[39; 49m[1m 327540 (B[m[39;49mused,(B[m[39;49m[1m 1550044 (B[m[39;49mbuff/缓存(B[m[39;49m(B[m[39;49m [K
KiB 交换：(B[m[39;49m[1m 0 (B[m[39;49mtotal,(B[m[39;49m[1m 0 (B[m[39;49mfree,(B[m[39; 49m[1m 0 (B[m[39;49mused.(B[m[39;49m[1m 1373184(B[m[39;49mavail Mem(B[m[39;49m(B[m[39;49m[ ķ
[K
[7m PID 用户 PR NI VIRT RES SHR S %CPU %MEM TIME+ 命令（B[m[39;49m[K
(B[m 1 根 20 0 185396 6044 4020 S 0.0 0.3 0:23.03 systemd (B[m[39;49m[K
(B[m 2 根 20 0 0 0 0 S 0.0 0.0 0:00.06 kthreadd (B[m[39;49m[K
(B[m 3 根 20 0 0 0 0 S 0.0 0.0 0:00.98 ksoftirqd/0 (B[m[39;49m[K
(B[m 5 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+ (B[m[39;49m[K
(B[m 7 根 20 0 0 0 0 S 0.0 0.0 3:41.59 rcu_sched (B[m[39;49m[K
(B[m 8 根 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh (B[m[39;49m[K
(B[m 9 根 rt 0 0 0 0 S 0.0 0.0 0:01.01 迁移/0 (B[m[39;49m[K
(B[m 10 根 rt 0 0 0 0 S 0.0 0.0 0:06.50 看门狗/0 (B[m[39;49m[K
(B[m 11 根 rt 0 0 0 0 S 0.0 0.0 0:06.96 看门狗/1 (B[m[39;49m[K
(B[m 12 根 rt 0 0 0 0 S 0.0 0.0 0:00.86 迁移/1 (B[m[39;49m[K
(B[m 13 根 20 0 0 0 0 S 0.0 0.0 0:02.11 ksoftirqd/1 (B[m[39;49m[K
(B[m 15 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:+ (B[m[39;49m[K
(B[m 17 根 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs (B[m[39;49m[K
(B[m 18 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns (B[m[39;49m[K
(B[m 19 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 perf (B[m[39;49m[K
(B[m 20 根 20 0 0 0 0 S 0.0 0.0 0:00.00 khungtaskd (B[m[39;49m[K
(B[m 21 根 0 -20 0 0 0 S 0.0 0.0 0:00.00 回写 (B[m[39;49m[K[?1l>[25;1H
[?12l[?25h[K]0;root@admin:~root@admin:~#exit

标签： pythonunicodeterminalasciipty

解决方案

您看到的是 ANSI 转义序列。它们用于控制颜色和光标位置。

在您的 script.sh 中使用“top -b”而不是“top”来删除所有特殊显示字符。

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