Reading from while loop into an array

ssuresh1999 · #1 (**permalink**) 08-12-2008

Hi
I have something like
cat $HOME/all_dirs | while read ln_old_dirs
do
if [ "$ln_all_old_dirs" != "" ]
then
echo "$ln_all_old_dirs"
fi
done

As you know that the variable ln_all_old_dirs is not accessable from outside the while loop
How to assign it in an array so that i can use it outside
It would be of great help
Thanks in advance
Suresh

ynilesh · #2 (**permalink**) 08-12-2008

Code:

#!/bin/bash
array=(red green blue yellow magenta)
len=${#array[*]}
echo "The array has $len members. They are:"
i=0
while [ $i -lt $len ]; do
	echo "$i: ${array[$i]}"
	let i++
done

Take a reference from this script.

- nilesh

ssuresh1999 · #3 (**permalink**) 08-12-2008

Hi nilesh
Thanks for your reply but mine is not fixed array it can have any number of entries greater than zero
array=($ln_all_old_dirs)
len=${#array[*]}
echo "The array has $len members. They are:"
i=0
while [ $i -lt $len ]; do
echo "$i: ${array[$i]}"
let i++
done
This is not working for me
moreover my main question is how to access set of values that is array outsid the loop

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