Regular Expression help

[miki landon]

Hi,

I would like to filter a file with a comma delimiter.

But I have trouble with my regular expression.

For example I have my data from mylog.txt

    
"02-feb-2010","06:17:12;08 ","00:00:15;00 "   ,"Hello123                  ","OY00402W","OY00402W","abc/00","04:00:14;29.","04:00:14;29.","02-feb-2010","06:17:27;08 "
"02-feb-2010","06:17:27;08 ","00:00:15;00 "   ,"Hello345                  ","OY00402W","OY00402W","abc/00","04:00:14;29.","04:00:14;29.","02-feb-2010","06:17:42;08 "
"02-feb-2010","05:58:59;00 ","00:00:15;00 "   ,"Hello678                  ","OY00402W","OY00402W","abc/00","04:00:14;29.","04:00:14;29.","02-feb-2010","05:59:14;02 "
"02-feb-2010","05:59:14;02 ","00:02:59;28 "   ,"                        ","UNKNOWN","UNKNOWN!","abc/00","00:00:00;00 ","00:02:59;27.","02-feb-2010","06:02:14;00 "

For example I would like to get the lines only when the 2nd coloumn is more than 06:00:00 am

I've tried

grep -e "(.*),("06:.*),(.*),(.*),(.*),(.*),(.*),(.*),(.*),(.*),(.*)" mylog.txt

but it doesn't work

Can someone help me?

Thanks,

Can some

[Jesper de Jong]

miki landon wrote:but it doesn't work

ItDoesntWorkIsUseless - please explain what you mean, do you get an error message, if so, what is the error message? What exactly did you expect and how does what actually happens differ from that?

[Tim Holloway]

Grep can't do logical comparisons, only pattern matching. AWK would be a better choice. It would also allow you to to split lines into fields based on separator characters such as commas without the need to set up a massive regex.

[Stefan Wagner]

if 'more than 6:00' just means, as given in the examples, 06:00 to 06:59 but not 07: or - beware 10:17, you could do it with grep:

egrep '^[^,]*,"06'  file 

even

egrep '^[^,]*,"0[6-9]' file 

seems to work, but from there it get's difficult.