shell命令实现当前目录下多个文件合并为一个文件的方法

find ./ -name "iptv_authenticate_201801*" | xargs cat > iptv_authenticate.txt

find ./ -name "iptv_authenticate_201801*" | xargs sed 'a\^J' > iptv_authenticate.txt

find ./ -name "iptv_authenticate_201801*" | xargs sed 'a\' > iptv_authenticate.txt

find ./ -name "iptv_liveswitch_201801*" | xargs sed 'a\' > iptv_liveswitch.txt

find ./ -name "iptv_qualified_201801*" | xargs sed 'a\' > iptv_qualified.txt

find ./ -name "iptv_vodload_201801*" | xargs sed 'a\' > iptv_vodload.txt

for fullpath in `find . -type f -name "*.txt"`
do
  sed -i '1i\Num\tPhone\tDate\tMessage\tId\tGudge' ${fullpath}
done

find . -type f -name "*.txt" | xargs -I {} sed -i '1i\Num\tPhone\tDate\tMessage\tId\tGudge' {}