Shell Programming and Scripting

awk -F"|" ' $1 ~ "^[0-9][0-9]*$" { print $1 }' file

this line work fine for all the test value like
23232@@
ww232323
2322%.%
3434*
-----
but why 4343$$44 is showing as numeric value ???
also 343$34
show as numeric and showing 3434

This expression is working for all other but not when the value contain $
can any one help ??

also i tried with echo $var | sed -n '/^[0-9][0-9]*$/p' same thing happened
any thing consist of 0-9 should be considered as numeric , this sed expression working fine except for the value 445$$343 or 23$899 some thing like this which contain $ , it is considering that as numeric .

I have taken the following
as constraint file. We need the second line right

It should work fine. Its working fine for me. I dont know whats happening in your case

try this

Code:

awk -F"|" ' 
BEGIN {
getline var < "constraintfile"
getline var < "constraintfile"
n = split( var , arr , "|" )
for ( i = 1 ; i <= n ; ++i )
{
        if( arr[i] == "Nu" )
                regexp[i] = "^[0-9][0-9]*$"
        if( arr[i] == "char" )
                regexp[i] = "^[a-zA-Z][a-zA-Z]*$"
print regexp[i]
}
}
#$1 ~ regexp[1] && $2 ~ regexp[2] && $3 ~ regexp[3] && $4 ~ regexp[4] {
#print $0
{
for( i = 1 ; i <= NF ; ++i )
{
        if ( ! match ( $i , regexp[i] ) )
                break;
        if ( i == NF )
                print $0
}
}' file

"^[0-9][0-9]*$" with regular expression to check for numeric is failed as it is accepting 4545$22 as numeric aslo 34343&232 is also as numeric
i want to accept 343.343 as numeric and 343343 as numeric other then that are non numeric.
I mean only decimal place and pure numeric form are considerd as numeric .
any special char inside is non numeric

To accept 343.343 as numeric use this

"^[0-9.][0-9.]*$"