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perl doubt plz explain....

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# 1  
Old 09-03-2007
Question perl doubt plz explain....
hi all

i wrote a shell script which uses perl script my code is :

Code:
>cat filename | while read i
>do
>perl -e 'require "/home/scripts/abc.pl" ; abc("$i")'
>done

perl script used will simply check syntax of Cobol programs but it didn't work for me so i asked my colleague he suggested following changes but i didn't get any can u explain me what exactly this mean

Code:
echo $i | perl -e 'require "/home/scripts/abc.pl" ; while (<STDIN>) {chomp $_  ; abc("$_");}'

what does $1 variable mean in perl ??
# 2  
Old 09-03-2007
$1 would contain the first matched string in a regex. For example:
Code:
$str = "something here blah blah";
$str =~ m/e(.)e/;
print $1;

this regex would match ere and r would be captured in $1
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