ref: e3fd8f1a5605ba41454588478a2bddf956cee5c5
dir: /sparkline/
#!/bin/rc
# by anth
rfork e
if (~ $#* 0) {
echo 'usage: '$0' n [n...]' >[1=2]
exit usage
}
min=$1
max=$1
for (i in $*) {
if (test $i -lt $min)
min=$i
if (test $i -gt $max)
max=$i
}
for (i in $*) {
q=`{hoc -e 'int(('$i' - '$min') / (('$max' - '$min') / 8))'}
echo -n $q | tr 012345678 ▁▂▃▄▅▆▇██
}