HQ9+ in sh

bug

#!/bin/sh

main() {
  hello_world=0
  quine=0
  nine=0
  plus=0
  accumulator=0

  while getopts hq9+ opt; do
    case "$opt" in
      h)
        echo hello, world
        ;;
      q)
        cat $0
        ;;
      9)
        echo Ninety nine bottles of beer on the wall
        echo Ninety nine bottles of beer
        echo etc.
        ;;
      +)
        accumulator=$(($accumulator + 1))
        ;;
    esac
  done
}

main "$@"

bug-naught

#!/bin/sh

hello_world=0
quine=0
nine=0
plus=0
accumulator=0
bug_args=

while getopts hq9+ opt; do
  case "$opt" in
    h)
      bug_args="-h $bug_args"
      ;;
    q)
      bug_args="-q $bug_args"
      ;;
    9)
      bug_args="-9 $bug_args"
      ;;
    +)
      bug_args="-+ $bug_args"
      ;;
  esac
done

saved_IFS=$IFS
IFS='
'
for i in $(./bug $bug_args); do
  echo $i
done

I would expect this to fail. "$var" is not the same as "$@" or "$*".

That's why, in our case we must to lsrc $LS_ARGS and not lsrc "$LS_ARGS"

Got it: it was the IFS.