:quote execution result 

no quote 

$ sh -xc 'filesb=`ls -A`; echo $filesb | od -c'
++ ls -A
+ filesb=etc
usr
+ echo etc usr
+ od -c
0000000   e   t   c       u   s   r  \n
0000010

quote 

$ sh -xc 'filesb=`ls -A`; echo "$filesb" | od -c'
++ ls -A
+ filesb=etc
usr
+ echo 'etc
usr'
+ od -c
0000000   e   t   c  \n   u   s   r  \n
0000010

documented on: 2004.02.25 Wed