Shell Programming and Scripting

4
8
11
12
16
20

echo "${returnedvalues}" | while read valA valB valC valD valE valF
do
....
....
done

akshay@Aix:~$ return="1 2 3 4 5 6"
akshay@Aix:~$ for i in $return; do echo $i; done
1
2
3
4
5
6


akshay@Aix:~$ array=( $return ); echo ${array[*]}
1 2 3 4 5 6

# Array Length
akshay@Aix:~$ echo "array length ${#array[@]}"
array length 6

# Access each element
akshay@Aix:~$  echo ${array[0]}
1
akshay@Aix:~$  echo ${array[1]}
2
akshay@Aix:~$  echo ${array[5]}
6

in KSH:
return="1 2 3 4 5 6"
set -A array $return
for i in ${array[@]}
do
        echo $i
done

in BASH:
return="1 2 3 4 5 6"
for i in ${return[@]}
do
        echo $i
done

valcount=$(echo "${returnedvalues}" | wc -l)

#!/bin/bash

# number of arguments (values)
args="$#"

# no values? -> exit
[ $args -eq 0 ] && exit 1

# dynamically generating variables: var1, var2, ...
vars=$( for ((i=1;i<=$args;i++)); do  printf "%s " var${i}; done )


echo "$@" | while read ${vars}
do
# uncomment next two lines to print var: value pairs
#    for ((i=1;i<=$args;i++)); do  var=var${i}
#    printf "%s: %d\n" "var${i}" "${!var}"; done
    echo "placeholder, substitute this with useful command(s)"
done

$ #faking script output here ;-)
$ retval="4
8
11
12
16
20"
$
$ #important! don't quote the variable
$ ./script.sh ${retval}
var1: 4
var2: 8
var3: 11
var4: 12
var5: 16
var6: 20
placeholder, substitute this with useful command(s)
$

read -a arr <<< $var

echo "${arr[0]}"
echo "${arr[1]}"
...

echo ${returnedvalues} | 
{ 
  read -a arr
  echo "${arr[0]}"
  echo "${arr[1]}"
  ...
}

set -- $returnedvalues
echo $1
echo $2
...

echo "$@" |
{
  read ${vars}
  ....
}

for i in ${return[@]}

for i in $return