利用Linux find command and exec合并带空格的csv文件

# ls -l | awk '{print $9 " " $10}'

A Words.csv
B Words.csv
C Words.csv
D Words.csv
E Words.csv
F Words.csv
G Words.csv
H Words.csv
I Words.csv
J Words.csv
K Words.csv
L Words.csv
M Words.csv
N Words.csv
O Words.csv
P Words.csv
Q Words.csv
R Words.csv
S Words.csv
T Words.csv
U Words.csv
V Words.csv
W Words.csv
X Words.csv
Y Words.csv
Z Words.csv

find . -name "*.csv" -type f -exec sh -c 'exec mv -f "$@" /tmp' X '{}' +
find . -name "*.csv" -type f -exec sh -c 'exec cat "$@" >> aa.txt' X '{}' +
find . -name "*.csv" -type f -exec cat >> aa.txt {} \;