删除文件的首行和尾行

需要移除文件的头尾行，最简单的方法是使用 sed 行编辑命令：

• 1d 删除第一行; 2d 删除第二行；依次类推

• $d 删除最后一行

举例:

#To remove the first record in the original file
sed -i '1d' FF_EMP.txt

#To create a new file with header removed
sed '1d' FF_EMP.txt > FF_EMP_NEW.txt 

#To remove the last record in the original file
sed -i '$d' FF_EMP.txt


#To create a new file with trailer removed
sed '$d' FF_EMP.txt > FF_EMP_NEW.txt 

• 可以同时结合起来删除头尾行

#To remove the header & footer
sed -i '1d;$d' FF_EMP.txt


#To create a new file with header & trailer removed
sed '1d;$d' FF_EMP.txt > FF_EMP_NEW.txt 

参考

• How to remove header and footer records of a flat file using UNIX shell script?