Stylistic changes to hopefully make the script better.  Changes include preferring [[ to [, and (( )) for arithmetic comparisons. Consulted websites, e.g.:
Stylistic changes to hopefully make the script better.  Changes
include preferring [[ to [, and (( )) for arithmetic comparisons.
Consulted websites, e.g.:

http://mywiki.wooledge.org/BashPitfalls
http://wiki.bash-hackers.org/scripting/obsolete

STIXProject/stixproject.github.io,jburns12/stixproject.github.io,STIXProject/stixproject.github.io,jburns12/stixproject.github.io,STIXProject/stixproject.github.io,jburns12/stixproject.github.io,STIXProject/stixproject.github.io,jburns12/stixproject.github.io