Python实现删除文件中含“指定内容”的行示例

本文实例讲述了Python实现删除文件中含指定内容的行。分享给大家供大家参考，具体如下：

#!/bin/env python
import shutil, sys, os
darray = [
 "Entering directory",
 "In function ",
 "Leaving directory",
 "__NR_SYSCALL_BASE",
 "arm-hisiv100-linux-ar ",
 "arm-hisiv100-linux-gcc ",
 "but argument is of type",
 "dereferencing type-punned pointer will break strict-aliasing rules",
 "differ in signedness",
 "does break strict-aliasing rules",
 "embedded '\\0' in format",
 "excess elements in array initializer",
 "implicit declaration of",
 "make -C ",
 " rm -f",
 "this is the location of the previous definition",
 "warning: multi-line comment"
]
def isInArray (array, line):
 for item in array:
   if item in line:
     return True
 return False
if __name__ == '__main__':
 argv = sys.argv
 argc = len(argv)
 if argc < 2:
   print "Usage: ％s <file>" ％(os.path.basename(argv[0]))
   exit()
 fname = argv[1]
 fresult = fname + ".result"
 with open(fname, 'r') as f:
   with open(fresult, 'w') as g:
     for line in f.readlines():
       if not isInArray(darray, line):
         g.write(line)

另外还可参考：bash删除文件中含"指定内容"的行

希望本文所述对大家Python程序设计有所帮助。