Q. Delete or remove last line from a file.


This can be achieved  with SED command.

sed -i '$d' filename

Let me explain this command. SED is a stream editor which is useful for editing stream of characters. here -i option say's to insert the data in to the original file, ie modify original file. $ indicates last line and d for deleting that line and update to the file.

There are other methods to delete last lines

head -n -1 file1 > file2;mv file2 file1

Here I used head command to list all the lines but not the last line, redirected the output of this to a new file then moved file1 to file2.




Post Views: 13,602
The following two tabs change content below.
My Twitter profileMy Facebook profileMy Google+ profileMy YouTube channel

Surendra Anne

Mr Surendra Anne is from Vijayawada, Andhra Pradesh, India. He is a Linux/Open source supporter who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. He works as Devops Engineer with Taggle systems, an IOT automatic water metering company, Sydney . You can contact him at surendra (@) linuxnix dot com.