training-guides/labs/lib/osbash at 8bd63e3f0ce0f53ef176378a459df0d936953771 - training-guides - OpenDev: Free Software Needs Free Tools

Always no quotes for $() statement.
We don't need quotes to hold blanks in result:
 # i=$(echo 1 2 3)
 # echo $i
 1 2 3
 #
These quotes can make something wrong in some case:
 # i=$(echo '!')
 #
 # i="$(echo '!')"
 -bash: !: event not found
 #
No real problem for current code, only to use a better code style.
Change-Id: Ib31b49680286600c9a182875122a0a752d3f8a33
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>