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Determine the string is valid

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# 1  
Old 09-18-2012
Determine the string is valid
Dear All,

I have a string "1234567899*0#123456789#", it can be divided into:
- 1st: 1234567899 Validation: 10 digits, only 0-9
- 2nd: *0# Fixed Value
- 3rd: 123456789 Validation: 9 digits, only 0-9
- 4th: # Fixed Value

Would like to know if any 1 line statement perl, awk, sed can do this checking.

Thanks
# 2  
Old 09-18-2012
Code:
perl -e 'if($ARGV[0] =~ /\A[0-9]{10}\*0#[0-9]{9}#\z/){print "Valid string\n"}else{print "Invalid string\n"}' '1234567899*0#123456789#'

This User Gave Thanks to elixir_sinari For This Post:
jimmy_y
# 3  
Old 09-18-2012
Thanks elixir, it works perfect.
regarding the \A, and \z, would u please guide me those two meaning.
# 4  
Old 09-18-2012
Both of these are anchors which force a match to be performed at that particular position. \A is the beginning-of-string anchor (absolute) and \z is the absolute end-of-string anchor.
# 5  
Old 09-18-2012
Thanks elixir, learnt a lot. Smilie
# 6  
Old 09-18-2012
Code:
[ `echo '1234567899*0#123456789#' | egrep '^[0-9]{10}\*0#[0-9]{9}#'` ] && echo good || echo bad

Last edited by Franklin52; 09-18-2012 at 05:42 AM.. Reason: Code tags
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