The equivalent of your one-liner without a system call: 
{
    local @ARGV = ($file);
    local $^I = '.bac';
    while(<>){
        s/^\s+//;
        print;
    }
}

[download]

In reply to Re: perl -pi -e s'/^\s+//'g $file by wind
in thread perl -pi -e s'/^\s+//'g $file by david_lyon

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