S
S.B
Hello friends.
Newb question here.
I'm trying to find an efficient way to "grep" a file with python.
The problem is that all the solutions I find on the web read a line at a time from the file with a "for line in" loop and check each line for the RE instead of sweeping through the entire file.
This looks terribly inefficient...
I can read the entire file like so:
open("/etc/passwd").read()
and use that in an re.search - e.g:
re.search("root",open("/etc/passwd").read())
The above will work BUT it will not interpolate the "\n" as a newline and will just print the entire file as a long line.
So if I try to look for '^root' (line starting with root) instead of 'root' it will NOT work
any ideas on how to get around this?
Thanks.
Newb question here.
I'm trying to find an efficient way to "grep" a file with python.
The problem is that all the solutions I find on the web read a line at a time from the file with a "for line in" loop and check each line for the RE instead of sweeping through the entire file.
This looks terribly inefficient...
I can read the entire file like so:
open("/etc/passwd").read()
and use that in an re.search - e.g:
re.search("root",open("/etc/passwd").read())
The above will work BUT it will not interpolate the "\n" as a newline and will just print the entire file as a long line.
So if I try to look for '^root' (line starting with root) instead of 'root' it will NOT work
any ideas on how to get around this?
Thanks.