Bourne Shell Array

Question

I'm looking to write a bourne shell which loops through an array of hosts and performs an rsync for each. Something like:

HOSTS=("host1.domain.com", "host2.domain.com")

for HOST in $HOSTS
do
    HOST_DIR_NAME = ${HOST//./-}
    rsync backup_user@$HOST:/backup/blah/blah /backup/$HOST_DIR_NAME/blah/blah
done

The issue is, however, it appears that the array above is not working as expected, as upon looping through the array I see the following output:

wwcprod.plyinc.com,

Every online guide I find says that I'm defining the array correctly, but its obviously not working. Help!

Thanks!

Answer 1

Your ideal solution is far simpler than a bash array (and far more portable to non-bash bourne-style shells):

HOSTS="one two three four"
for H in $HOSTS ; do
    [... whatever for ${H} ...]
done

The for will split on whitespace within a string :-)