host:~ # perl -MPOSIX=strftime -e 'print strftime( "%Y%m%d.csv", localtime );' | hexdump -c
0000000   2   0   1   4   1   0   0   8   .   c   s   v
000000c
host:~ # perl -e 'print qx(date +%Y%m%d.csv);' | hexdump -c
0000000   2   0   1   4   1   0   0   8   .   c   s   v  \n
000000d