gzip => base64 encoding of long strings => decode => gunzip

OSXtest.sh

#!/bin/bash

BAR=$(printf '#!/bin/bash\ntouch /tmp/ididit\necho \"root:changeme2016\" | chpasswd"' | gzip | openssl base64 -A)

echo $BAR | python -m base64 -d | gunzip

test.sh

#!/bin/bash

FOO=$(echo '#!/bin/bash\ntouch /tmp/ididit echo\n\"root:changeme2016\" | chpasswd"' | gzip | base64 -w0)
echo $FOO | base64 -d | gunzip