Date: Fri, 4 Jan 2002 15:27:51 -0500 From: parv <parv_@yahoo.com> To: f-q <freebsd-questions@freebsd.org> Subject: any way to make efficient the awk script Message-ID: <20020104202751.GA82783@moo.holy.cow>
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hi,
below is my first awk script. is there any way to make it any more
efficient? in particular, i want to know if printf() & print
statements could be combined.
goal is to shorten each line of apache http log for quick
browsing/sorting.
- begin ---
#! /bin/sh
logs="/path/to/log/file(s)"
# given a line this (from apache log)...
#
#------------------------------------------------------------------------------------------
# 1 2 3 4 5 6 7 8 9 10 11 12..$
#------------------------------------------------------------------------------------------
#127.0.0.1 - - [30/Dec/2001:14:43:28 -0500] "GET /file/path HTTP/1.0" 200 57853 "-" "User ... Agent"
#
# ...awk gives..
#
# w/o seconds (implemented)
#127.0.0.1 2001.12.30 14.43 -0500 /file/path (200) -
#
# w/ seconds (not implemented)
#127.0.0.1 2001.12.30 14.43.28 -0500 /file/path (200) -
#
awk '
BEGIN \
{ # create month_num array to map month names to numbers
month_name_list = "Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec"
split(month_name_list, month_names, ",")
for (i in month_names)
{
month = month_names[i]
month_num[month] = sprintf("%0.2d", i)
}
}
! /w3c_validator.*libwww-perl|baa.*sheep|moo|\.css|robots\.txt|GET \/ HTTP/ \
{
# create date array containing: day, month(name), year, hour, minute, second
split(substr($4,2,20), date, "/|:")
printf("%-18s",$1) # left justify ip4 address w/ 3 extra spaces at the end
# year . month number . day hour . minute timezone offset
# | | | | | |
print date[3]"."month_num[date[2]]"."date[1], date[4]"."date[5], substr($5,1,length($5)-1), \
" ", $7, " ("$9") ", substr($11,2,length($11)-2)
# | | |
# file (http code) referrer
}' $logs
- end ---
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