通过 crontab 执行 Python 脚本

我正在尝试使用 Linux Crontab执行一个 Python 脚本，我想每10分钟运行一次这个脚本。

我找到了很多解决方案，但没有一个奏效。例如: 编辑 /etc/cron.d处的 anacron 或使用 crontab -e。我把这一行放在文件的末尾，但它不会改变任何东西。我是否需要重新启动任何服务？

*/2 * * * * /usr/bin/python /home/souza/Documets/Listener/listener.py

我必须编辑哪个文件来配置它？

这是剧本。

#!/usr/bin/python
# -*- coding: iso-8859-15 -*-


import json
import os
import pycurl
import sys
import cStringIO


if __name__ == "__main__":


name_server_standart = "Server created by script %d"
json_file_standart = "{ \"server\" : {  \"name\" : \"%s\", \"imageRef\" : \"%s\", \"flavorRef\" : \"%s\" } }"


curl_auth_token = pycurl.Curl()


gettoken = cStringIO.StringIO()


curl_auth_token.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1")
curl_auth_token.setopt(pycurl.POST, 1)
curl_auth_token.setopt(pycurl.HTTPHEADER, ["X-Auth-User: cpca",
"X-Auth-Key: 438ac2d9-689f-4c50-9d00-c2883cfd38d0"])


curl_auth_token.setopt(pycurl.HEADERFUNCTION, gettoken.write)
curl_auth_token.perform()
chg = gettoken.getvalue()


auth_token = chg[chg.find("X-Auth-Token: ")+len("X-Auth-Token: ") : chg.find("X-Server-Management-Url:")-1]


token = "X-Auth-Token: {0}".format(auth_token)
curl_auth_token.close()


#----------------------------


getter = cStringIO.StringIO()
curl_hab_image = pycurl.Curl()
curl_hab_image.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/images/7")
curl_hab_image.setopt(pycurl.HTTPGET, 1) #tirei essa linha e funcionou, nao sei porque
curl_hab_image.setopt(pycurl.HTTPHEADER, [token])


curl_hab_image.setopt(pycurl.WRITEFUNCTION, getter.write)
#curl_list.setopt(pycurl.VERBOSE, 1)
curl_hab_image.perform()
curl_hab_image.close()


getter = cStringIO.StringIO()


curl_list = pycurl.Curl()
curl_list.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/servers/detail")
curl_list.setopt(pycurl.HTTPGET, 1) #tirei essa linha e funcionou, nao sei porque
curl_list.setopt(pycurl.HTTPHEADER, [token])


curl_list.setopt(pycurl.WRITEFUNCTION, getter.write)
#curl_list.setopt(pycurl.VERBOSE, 1)
curl_list.perform()
curl_list.close()


#----------------------------


resp = getter.getvalue()


con = int(resp.count("status"))


s = json.loads(resp)


lst = []


for i in range(con):
lst.append(s['servers'][i]['status'])


for j in range(len(lst)):
actual = lst.pop()
print actual


if actual != "ACTIVE" and actual != "BUILD" and actual != "REBOOT" and actual != "RESIZE":


print "Entra no If"


f = file('counter', 'r+w')


num = 0
for line in f:
num = line


content = int(num)+1


ins = str(content)


f.seek(0)
f.write(ins)
f.truncate()
f.close()


print "Contador"


json_file = file('json_file_create_server.json','r+w')


name_server_final = name_server_standart % content
path_to_image = "http://192.168.100.241:8774/v1.1/nuvemcpca/images/7"
path_to_flavor = "http://192.168.100.241:8774/v1.1/nuvemcpca/flavors/1"


new_json_file_content = json_file_standart % (name_server_final, path_to_image, path_to_flavor)


json_file.seek(0)
json_file.write(new_json_file_content)
json_file.truncate()
json_file.close()


print "Json File"


fil = file("json_file_create_server.json")
siz = os.path.getsize("json_file_create_server.json")


cont_size = "Content-Length: %d" % siz
cont_type = "Content-Type: application/json"
accept = "Accept: application/json"


c_create_servers = pycurl.Curl()


logger = cStringIO.StringIO()


c_create_servers.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/servers")


c_create_servers.setopt(pycurl.HTTPHEADER, [token, cont_type, accept, cont_size])


c_create_servers.setopt(pycurl.POST, 1)


c_create_servers.setopt(pycurl.INFILE, fil)


c_create_servers.setopt(pycurl.INFILESIZE, siz)


c_create_servers.setopt(pycurl.WRITEFUNCTION, logger.write)


print "Teste perform"


c_create_servers.perform()


print logger.getvalue()


c_create_servers.close()