Shell Programming and Scripting

../scriptB.sh  one two "th ree"

../scriptB.sh  $my_args

#!/bin/bash 
echo "------------------------------"
echo allargs: "$@"

# build array from input $@ to ensure multi-word 
# elements can include whitespace

i=0
for arg in "$@"
do
	argArray[$i]=$arg
	let "i+=1"
done

elem_cnt=${#argArray[@]}
echo elem count: $elem_cnt

indx=0

# print array contents
while [ "$indx" -lt "$elem_cnt" ]
do
	echo "arg[$indx]: ${argArray[indx]}"
	let indx+=1
done

exit 0

$ my_args="one,two,th ree"
$ OIFS=$IFS
$ IFS=,
$ ../scriptB.sh  $my_args
$ IFS=$OIFS

ARR=( "$@" )

/home/scriptB.sh  one  two  "th ree"

/home/scriptB.sh $mystr

# eval considers a string as its own shell statement, which 
# will process one two "th ree" as three strings as intended.
$ STR='one two "th ree"'
$ eval "printf \"%s\n\" $STR"
one
two
th ree

# But this means it will swallow ANY valid shell syntax, including
# backticks, variable assignments, etc, etc, etc.
# Someone could make your program do anything by feeding
# it the right string.
$ STR='one two "th ree" `touch /`'
$ eval "printf \"%s\n\" $STR"
touch: setting times of `/': Permission denied
one
two
th ree

myArray=("$@")