I'm a Perl newbie. I have this perl command line 
 perl -i.bak -F, -ane '
    if ($F[0]+1 == $F[1] and $F[1]+1 == $F[2]) {warn "row $.: $_"} els
+e {print}
' file.csv 2>file.log

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I want to make it a perl script file.pl So the program should work like so, but I'm not sure how to write it properly in perl 
for line in file: 
    for i in range(1,4):
        if ($F[0]+ i == $F[1] and $F[1]+i == $F[2]): 
           remove line

[download]
so you see it's pretty basic, I want use perl, not python for reasons outside the scope of my question

In reply to Searching for Patterns in CSV by Fischer

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