subprocess.Popen for循環輸出

Question

代碼：

with open ('Client.txt','r') as Client_Name: 
    for Client in Client_Name: 
     out = subprocess.Popen(['script.sh', '-byclient', Client], stdout=subprocess.PIPE) 
     outputstring = out.communicate() 
     print (outputstring) 

這個代碼不給輸出，我想在Client.txt文件傳遞客戶端名稱script.sh。任何建議請。

Answer 1

您的代碼將名稱傳遞給腳本似乎是正確的，但communicate實際上返回tuple,(stdout_data, stderr_data)。

您可能還想通過universal_newlines=True到Popen來解碼輸出。在CLIENT_NAME客戶 ：試試這個：

out = subprocess.Popen(['script.sh', '-byclient', Client], 
         stdout=subprocess.PIPE, 
         universal_newlines=True) 
out.wait() # wait until the script has finished 
stdout_data, stderr_data = out.communicate() 
print(stdout_data) 

或者，如果你想實時打印輸出：

out = subprocess.Popen(['script.sh', '-byclient', Client], 
         stdout=subprocess.PIPE, 
         universal_newlines=True) 
for line in out.stdout: 
    print(line)