Cat、grep和重定向到python
这是我尝试过的…不起作用 我能想到的最简单的解决方案:Cat、grep和重定向到python,python,Python,这是我尝试过的…不起作用 我能想到的最简单的解决方案: with open("filename") as origin_file: for line in origin_file: line = re.findall(r"something",line) f=open('file2.txt','w') subprocess.call('line',stdout=f) f.close() 为什么不起作用?可能是重复的 with open(
with open("filename") as origin_file:
for line in origin_file:
line = re.findall(r"something",line)
f=open('file2.txt','w')
subprocess.call('line',stdout=f)
f.close()
为什么不起作用?可能是重复的
with open("filename") as origin_file:
for line in origin_file:
line = re.findall(r"something",line)
f=open('file2.txt','w')
subprocess.call('line',stdout=f)
f.close()
with open('filename', 'r') as in_f, open('file2.txt', 'a') as out_f:
for line in in_f:
if 'something' in line:
out_f.write(line)