As you said, use (s)printf. (printf doesnt respect -l so this looks a touch more clumsy than it needs to). 

D:\dev>perl -e "printf '%08b%s',$_,$/ for 1..10"
00000001
00000010
00000011
00000100
00000101
00000110
00000111
00001000
00001001
00001010

[download]

Unpack operates on strings not on integers so you need to ensure that chr(10) is passed in and not '10'. 

D:\dev>perl -le "print unpack 'B*',chr($_) for 1..10"
00000001
00000010
00000011
00000100
00000101
00000110
00000111
00001000
00001001
00001010

[download]
---
$world=~s/war/peace/g

In reply to Re: unpack in incrementing variables by demerphq
in thread unpack in incrementing variables by GrandFather

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