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python實(shí)現(xiàn)批處理文件

更新時間：2020年07月28日 17:17:21 作者：fanyamin

這篇文章主要為大家詳細(xì)介紹了python實(shí)現(xiàn)批處理文件，文中示例代碼介紹的非常詳細(xì)，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了python實(shí)現(xiàn)批處理文件的具體代碼，供大家參考，具體內(nèi)容如下

Windows下的bat, linux 下的shell 用來做批處理都很好用，可惜不通用
用 Python 來做就簡單多了，不過一條條寫代碼來調(diào)用系統(tǒng)命令也夠煩的了
程序員都很懶, 不愿做機(jī)械無謂的重復(fù)性工作, 干脆自己實(shí)現(xiàn)一個.

用法超級簡單, 默認(rèn)會執(zhí)行一個自定義的 batch.json, 按順序一條條執(zhí)行其中的步驟

{"steps": 
 [
 {"step":"df -h","desc":"display disk space usage"},
 {"step":"date","desc":"display the current dater"},
 {"step":"time","desc":"display the current time"}
 ]
}

用法：

python batch.py

當(dāng)然也可以指定不同的步驟文件 , 例如

python batch.py xxx.json

運(yùn)行結(jié)果以markdown形式輸出, 例如

$ python batch.py
Usage: python batch.py <batch_json_file>
note: execute the batch.json by default
# Execute batch.json begin
---------------------------

## Will execute 3 steps
~~~~~~~~~~~~~~~~~~~~~~~~~~~
0. [df -h]: display disk space usage
1. [date]: display the current dater
2. [time]: display the current time

* 0. [df -h]: display disk space usage
Filesystem       Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk1       233Gi 208Gi 24Gi 90% 54622825 6364694 90% /
devfs        329Ki 329Ki 0Bi 100%  

* 1. [date]: display the current dater
Thu Mar 3 22:50:21 CST 2016

* 2. [time]: display the current time

real 0m0.001s
user 0m0.000s
sys 0m0.000s

## Done the following steps
~~~~~~~~~~~~~~~~~~~~~~~~~~~
0. [df -h]: display disk space usage
1. [date]: display the current dater
# Execute batch.json end.

Python源代碼如下, 希望有人能用得上

'''
 like bat file, execute the steps in batch.json 
'''
import os,sys,subprocess
import time,thread
import codecs
import json
from datetime import datetime
from subprocess import call
from pprint import pprint

def execute_json(json_file):
 print "# Execute {0} begin\n---------------------------".format(json_file)

 json_data=open(json_file)
 data = json.load(json_data)
 cnt = len(data['steps'])
 i = 0
 print "\n## Will execute {0} steps \n~~~~~~~~~~~~~~~~~~~~~~~~~~~".format(cnt)
 for i in range(0, cnt):
   print "{0}. [{1}]: {2}".format(i, data['steps'][i]['step'], data['steps'][i]['desc'])

 #pprint(data)
 #print("cnt=", cnt)
 for i in range(0, cnt):
  cmd = data['steps'][i]['step']
  desc = data['steps'][i]['desc']
  print "\n* {0}. [{1}]: {2} ".format(i, cmd, desc)

  if(cmd.startswith('cd')):
   cmd = cmd.replace("cd ", "")
   os.chdir(cmd)
  else:
   ret = os.system(cmd)
   if(ret != 0):
    print "Encounter error of step {0}. {1}, error code={2}".format(i, cmd, ret)
    break

 print "\n## Done the following steps\n~~~~~~~~~~~~~~~~~~~~~~~~~~~"
 for j in range(0, i):
  print "{0}. [{1}]: {2}".format(j, data['steps'][j]['step'], data['steps'][j]['desc']) 
 json_data.close()
 print "# Execute {0} end.".format(json_file)

if __name__ == "__main__":
 argc = len(sys.argv)
 step_file = 'batch.json'
 if( argc > 1):
  idx = 1
  while(idx < argc):
   step_file = sys.argv[idx]
   execute_json(step_file)
   idx = idx + 1
 else:
  print "Usage: python {0} <batch_json_file>".format(sys.argv[0])
  print "note: execute the batch.json by default"
  execute_json(step_file)

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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