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.
Latest posts by Surendra Anne (see all)
- FREE: JOIN OUR DEVOPS TELEGRAM GROUPS - August 2, 2019
- Review: Whizlabs Practice Tests for AWS Certified Solutions Architect Professional (CSAP) - August 27, 2018
- How to use ohai/chef-shell to get node attributes - July 19, 2018
- wget download a file to a directory in Linux/Unix - June 4, 2018
- GIT: How to compare two GIT branches? - June 3, 2018