dear monks, i had been using some linux commands like grep and cat, but it seems as they doesn't take any variable except $_. this code doesn't work but when i replace it with $_ , it works. 1 more thing i had to ask is how many $_ variables can be used simultaneously and how. thanks for sharing your knowledge 

foreach $keye (@key_en)
{
$linb=`cat /home/vikash/pro_1/en_1000 | grep --regexp '$keye'`;

print "$linb\n";
}

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In reply to why does it not work??? by vikashiiitdm

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