Hi, I have a small problem.In a cgi form i am taking input in two text boxes corresponding to hours of the day
enteries could be like:
00 and 23 (all day)
04-08
then i have to grep for all the entries in a file that have been logged in those hours.
fileformat
hourminute/min/avg/max
0422/56/67/89
for this i want to generate a grep statement on the fly. can anyone help me with this i was thinking of 
foreach ($starttim..$endtime)
{
  grep formed here
}

[download]

can i have some sort of a grep ^04|^05|^06|^07|^08
or does it have to be
cat file | grep -e "^04" -e "^05" (beginning with hour in the file so as not to match minutes)
but i cannot come up with a fast logic. Is there better way then above? thanks

In reply to Generating a grep command at run time by chimni

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