Sed remove last lines from file

However, they use non-standard fonts installed on my machine. Add menu. How to use sed to remove the last n lines of a file Posted by: admin December 4, Leave a comment.

In single quotes, no interpolate will be performed. You could use head for this. Count up the number of lines in the main file Subtract the number of lines you want to remove from the count Print out the number of lines you want to keep and store in a temp file Replace the main file with the temp file Remove the temp file. How can one embed a font into a PDF with free linux command line tools? Bash: How can I list out the size of each file and directory recursively and sort by size decendingly?

You can specify the list of lines you want to remove in sed command with semicolon as a delimiter. However, this sed do not remove the lines that contain spaces. In the following examples, the sed command deletes the lines in file which match the given pattern. Above sed command removes all the lines that start with character 'u'. The above command deletes all the lines that end with character 'x'.

Here the sed command removes the line that matches the pattern fedora and also deletes all the lines to the end of the file which appear next to this matching line. Note: In all the above examples, the sed command prints the contents of the file on the unix or linux terminal by removing the lines. However the sed command does not remove the lines from the source file. To Remove the lines from the source file itself, use the -i option with sed command.

A passionate Linux user for personal and professional reasons, always exploring what is new in the world of Linux and sharing with my readers. The sed command is known as a stream editor.

The sed command is used in Linux to do basic text transformation. Remove or delete that particular line that matches the given patterns. Removing lines with regular expressions. Using the sed command, we can remove the lines depending on the environment by using -i. Sed '4,7! Prateek Jangid A passionate Linux user for personal and professional reasons, always exploring what is new in the world of Linux and sharing with my readers. View all posts.