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Help with Regular expression in ping script

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# 1  
Old 11-01-2013
Help with Regular expression
Hi everyone,

Code:
ping  www.google.com | awk 'BEGIN{FS="[\= ]+";}{if ($10 ~ (/^[0-9][0-9]$/) || (/^[0-9][0-9]\.[0-9]?/)) print "SLOW"; else print $0}

output
Code:
awk: warning: escape sequence `\=' treated as plain `='
PING www.google.com (xxx.xxx.xxx.xxx) 56(84) bytes of data.
64 bytes from xxx.xxx.xxx.xxx icmp_req=2 ttl=128 time=23.4 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_req=3 ttl=128 time=24.3 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_req=4 ttl=128 time=23.0 ms

I have tested this reguler expression aganist normal input file and it works fine, however, piping ping to awk and it's not picking up the milisecond time to print out it's "SLOW"

What am i missing? Thanks in advance!!
Last edited by Apollo; 11-02-2013 at 06:55 AM..
# 2  
Old 11-01-2013
If there's two whole numbers before the decimal to qualify as "slow", does it matter if there's a decimal at all?

Code:
$ ping www.google.com | awk -F"[= ]" '{ print ($10 ~ /^[0-9][0-9]/)?"SLOW":$0 }'

(ps: thoughtful of you to hide Google's IP address Smilie)
This User Gave Thanks to Scott For This Post:
Apollo
# 3  
Old 11-01-2013
Quote:
Originally Posted by Scott
If there's two whole numbers before the decimal to qualify as "slow", does it matter if there's a decimal at all?

Code:
$ ping www.google.com | awk -F"[= ]" '{ print ($10 ~ /^[0-9][0-9]/)?"SLOW":$0 }'

(ps: thoughtful of you to hide Google's IP address Smilie)
haha thanks man..

Do you mind to explain where did i go wrong with the actual reqular expression i have wrote? i would like to get your thoughts Smilie
# 4  
Old 11-01-2013
You were testing if $10 starts with two numbers, or if the whole line ($0) starts with two numbers and a decimal and another number.

Code:
$ echo a b c d e f g h i 1 | awk '$10 ~ /^1/ || $0 ~ /^2/'
a b c d e f g h i 1
$ echo a b c d e f g h i 2 | awk '$10 ~ /^1/ || $0 ~ /^2/'
$ echo 2 b c d e f g h i j | awk '$10 ~ /^1/ || $0 ~ /^2/'
2 b c d e f g h i j

This User Gave Thanks to Scott For This Post:
Apollo
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