Python
Open a file:
with open('filename.txt', 'r') as f:
first_line = f.readline()
print "1st line = ", first_line
Python REGEX sample
import re
def find(pat,text):
....match = re.search(pat,text)
....if match: print match.group()
....else: print "not found"
find('iig','piiig')
find('x...g','called piiig')
find(r'[\w.]+@[\w.]+','blah shiva@mail.com blah @.')
find(r"[\w']+","dhel afkljsl ")
# left to right
# . (dot) any character
# \w word character
# \d digit
# \s whitespace
# \S non-whitespace chars
# r = treat the following quoted string as raw string
def find_all(pat,text):
....## re.findall finds all the patterns in the provided text
....re.findall(r'([\w.]+)@([\w.]+)','blash .shiva.ch@mail.com blah')
