大文件按行分离脚本

#!/bin/bash
#大文件按行数分离成若干小文件脚本

con_data='db2 connect to db_edp'
con_time='db2 "values current timestamp"'
con_reset='db2 connect reset'
#将要分离的文件名写到此处，其它地方不要改动
clear_file=pdm_20160512.txt

echo $con_data > lianjie.txt
echo $con_time >> lianjie.txt

echo "添加连接数据库命令到分离文件中......" 
awk '1;NR%40==0{system("cat lianjie.txt")}' $clear_file > $clear_file.bak
sed -i "1i $con_data" $clear_file.bak
sed -i "2i $con_time" $clear_file.bak

echo "开始分离文件......"
split -l 42 -d -a 3 $clear_file.bak del_ && ls| grep del_ | xargs -n1 -i mv {} {}.sh

echo "添加结尾时间戳到分离后的小文件中......"
for file in `ls|grep del_`;do
echo $con_time >> $file
echo $con_reset >> $file
done

echo "压缩分离后的小文件......"
tar cf $clear_file.tar del_*

echo "删除生成的文件......"
rm -f del_* lianjie.txt $clear_file.bak

echo "执行完成"