Comma in regular expression

Shell Programming and Scripting
1

Hi,

I need to check if string contains comma...
Wrote like ~ m/\,/ but no luck...

Also taken comma in variable and checked with ~ m/($comma)/ but this also doesn't help....

Please advise

2 
my $var;
while(1)
{
$var=<>;
if($var=~/,/)
{
    print $var;
    last;
}
}
3

Hi , darshakraut your method also should work if your string is valid.

Try this,

if($string=~m/,/)
4

see the following regular expression.

if ( $val =~ m/[,]/)

[or]

if ( $val =~ m%,%)

you can change the delimiter instead of "/" like %, #, !, | etc.,

5

what about with a grep
if

sample="hello,fool"

then

echo "$sample" | grep -c ","

returns 1
while

sample1="not here"
echo "$sample1" | grep -c ","

returns 0

and the result could be put to a variable.