CLI convert percentage to Unicode box

convert-percentage

$ echo 0 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
 

$ echo .25 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
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$ echo .3 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
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$ echo .4 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
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$ echo .8 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
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$ echo 1 | ruby -ne 'puts (n=($_.to_f*8).ceil)==0?" ":[[8,[0,n].max].min+0x2580].pack("U*")'
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