Access Element of Array after Splitting string in a bash script

Question

In a bash script I split a line into pieces and then again split one of the pieces by "/".

example of my input is:

line="./function -o=25-32 -f=1000 -t=1000 -r=SNISSWWN /../allfiles/1BE3C_25.pdb >Log.txt"

The code I use is as below:

stringarray=($line)
pdb=${stringarray[5]}
echo "The 5th element is: "$pdb

arr=$(echo $pdb | tr "/" "\n")

echo "elements in arr are: "
for x in $arr
do
    echo $x
done

echo "The second element in arr is:"
echo  ${arr[2]}

The out put I get is:

The 5th element is: /../allfiles/1BE3C_25.pdb elements in arr are: .. allfiles 1BE3C_25.pdb

The second element in arr is:

which means that I can't access the elements in arr.

Can you please tell me how I can access that?

thank you

glenn jackman · Accepted Answer · 2013-11-21 18:39:48Z

1

You are assigning arr as a string, not an array. You're missing a set of parentheses

arr=( $(echo $pdb | tr "/" "\n") )

answered Nov 21, 2013 at 18:39

glenn jackman

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