web-linux-shell实现 阿里方案canvas+wss。

wss://shell.aliyun.com/terminals?cols=92&rows=35

[root@webshell ~]# python
Python 3.6.8 (default, Apr 25 2019, 21:02:35)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> output = subprocess.Popen(['ls','-l'],stdout=subprocess.PIPE,shell=True).communicate()
>>> output = subprocess.Popen(['free ','-g'],stdout=subprocess.PIPE,shell=True).communicate()
>>> output
(b'              total        used        free      shared  buff/cache   available
Mem:        3880404      988888      118752       25140     2772764     2561112
Swap:             0           0           0
', None)
>>> output = subprocess.Popen(['tree /'],stdout=subprocess.PIPE,shell=True).communicate()
^CTraceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.6/subprocess.py", line 850, in communicate
    stdout = self.stdout.read()
KeyboardInterrupt
>>>
KeyboardInterrupt
>>>
KeyboardInterrupt
>>> output = subprocess.Popen(['top'],stdout=subprocess.PIPE,shell=True).communicate()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.6/subprocess.py", line 850, in communicate
    stdout = self.stdout.read()
KeyboardInterrupt
>>>
KeyboardInterrupt
>>> output = subprocess.Popen(['ls'],stdout=subprocess.PIPE,shell=True).communicate()
>>> output
(b'config.json
nohup.out
npm-debug.log
pkgTmp
', None)
>>> output = subprocess.Popen(['ll'],stdout=subprocess.PIPE,shell=True).communicate()
/bin/sh: ll: command not found
>>> output = subprocess.Popen(['ls','-l'],stdout=subprocess.PIPE,shell=True).communicate()
>>> output[0]
b'config.json
nohup.out
npm-debug.log
pkgTmp
'
>>> output = subprocess.Popen(['tree','./pkgTmp/'],stdout=subprocess.PIPE,shell=True).communicate()
>>> output[0]
b'.
xe2x94x9cxe2x94x80xe2x94x80 config.json
xe2x94x9cxe2x94x80xe2x94x80 nohup.out
xe2x94x9cxe2x94x80xe2x94x80 npm-debug.log
xe2x94x94xe2x94x80xe2x94x80 pkgTmp
    xe2x94x9cxe2x94x80xe2x94x80 mysql57-community-release-el7-10.noarch.rpm
    xe2x94x94xe2x94x80xe2x94x80 Python-3.7.4.tgz

1 directory, 5 files
'
>>> output[0].decode('utf-8')
'.
├── config.json
├── nohup.out
├── npm-debug.log
└── pkgTmp
    ├── mysql57-community-release-el7-10.noarch.rpm
    └── Python-3.7.4.tgz

1 directory, 5 files
'
>>>



[root@webshell ~]# tree ./pkgTmp/
./pkgTmp/
├── mysql57-community-release-el7-10.noarch.rpm
└── Python-3.7.4.tgz

0 directories, 2 files
[root@webshell ~]#

　　

https://www.cnblogs.com/snow-backup/p/5035792.html