examples/scripts/center

   1 #! /bin/bash
   2 #
   3 # center - center a group of lines
   4 #
   5 # tabs in the lines might cause this to look a little bit off
   6 #
   7 #
   8
   9 width=${COLUMNS:-80}
  10
  11 if [[ $# == 0 ]]
  12 then
  13         set -- /dev/stdin
  14 fi
  15
  16 for file
  17 do
  18         while read -r
  19         do
  20                 printf "%*s\n" $(( (width+${#REPLY})/2 )) "$REPLY"
  21         done < $file
  22 done
  23
  24 exit 0