python 捕获 shell/bash 脚本的输出结果实例

在使用 "fastboot.exe oem sku"这个自定义命令的时候，发现无法获取output内容，使用下面的方法可以；

多数情况下，我们使用“result = subprocess.check_output("fastboot.exe devices", shell=True) ”就应该可以从STD oupt获取内容。

下面是项目用到的代码片，共大家参考

            # Get current SKU ID, store it for backup
            print ">>>fastboot.exe oem sku"
            p = subprocess.Popen("fastboot.exe oem sku", shell=True, stdin = subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
            (output, err) = p.communicate()
            p_status = p.wait()
            print "Command output : ", output
            split_lines=output.split('\n')
            skuid_backup = split_lines[1][30:]
            print skuid_backup
            restore_cmd = "fastboot.exe oem sku " + skuid_backup
            time.sleep(3)
            
            # try to assign 1222 to oem sku, it should fail 
            print ">>>fastboot.exe oem sku 1222"
            subprocess.check_output("fastboot.exe oem sku 1222", shell=True)
            time.sleep(3)
            # check the oem sku id, it should NOT 1222
            print ">>>fastboot.exe oem sku"
            p = subprocess.Popen("fastboot.exe oem sku", shell=True, stdin = subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
            (output, err) = p.communicate()
            p_status = p.wait()
            print "Command output : ", output
            assert "1222" not in output, "fastboot should NOT programm 1222 to sku id, failed"
            time.sleep(3)

其他参考代码，

#!/usr/bin/python
## get subprocess module 
import subprocess
 
## call date command ##
p = subprocess.Popen("date", stdout=subprocess.PIPE, shell=True)
 
## Talk with date command i.e. read data from stdout and stderr. Store this info in tuple 
## Interact with process: Send data to stdin. Read data from stdout and stderr, 
## until end-of-file is reached.Wait for process to terminate. The optional input 
## argument should be a string to be sent to the child process, or None, 
## if no data should be sent to the child. ##
(output, err) = p.communicate()
 
## Wait for date to terminate. Get return returncode ##
p_status = p.wait()
print "Command output : ", output
print "Command exit status/return code : ", p_status