bar usage: bar foo

bar.rb

#! /usr/bin/env ruby

bar_char   = '-'
lead_count = 5
cols       = `tput cols`.strip.to_i
max_len    = [cols - ((2 * lead_count) + 4), 0].max
bar_color  = `tput setaf 3`
reset      = `tput sgr0`

title = ARGV.join ' '
title = title[0...max_len]
title = "[ #{title} ]" unless title == ""

print bar_color
print bar_char * [lead_count, cols].min
print title
print bar_char * [cols - title.length - lead_count, 0].max
print reset
print "\n"