Bin Chen wrote:
> I want to do following: get a user input regex, then pass this as a
> parameter to grep, and then get the result from grep.
>
> Any code snip to implement the similar function? I am a python newbie.
import os
for line in os.popen("grep pattern *.txt"):
print line,
also see os.system and subprocess.
note that if you want to write portable code, you can implement your own
"grep" using the "re" module:
import re
p = re.compile(pattern)
for index, line in enumerate(open(filename)):
if p.match(line):
print index, line,
</F>
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