
tail - cat line X to line Y on a huge file - Unix & Linux Stack Exchange
Say I have a huge text file (>2GB) and I just want to cat the lines X to Y (e.g. 57890000 to 57890010). From what I understand I can do this by piping head into tail or viceversa, i.e. head -A /...
How does the "tail" command's "-f" parameter work?
From the tail(1) man page: With --follow (-f), tail defaults to following the file descriptor, which means that even if a tail’ed file is renamed, tail will continue to track its end. This default behavior is not desirable …
How to have tail -f show colored output - Unix & Linux Stack Exchange
Jan 30, 2014 · I'd like to be able to tail the output of a server log file that has messages like: INFO SEVERE etc, and if it's SEVERE, show the line in red; if it's INFO, in green. What kind of alias can I …
Does "less" have a feature like "tail --follow=name" ("-F")
Apr 15, 2015 · The command less can be used to replace tail in tail -f file to provide features like handling binary output and navigating the scrollback: less +F file The + prefix means "pretend I type …
Show tail of files in a directory? - Unix & Linux Stack Exchange
Show tail of files in a directory? Ask Question Asked 12 years, 4 months ago Modified 12 years, 4 months ago
How to quit `tail -f` mode without using `Ctrl+c`?
Aug 22, 2017 · When I do tail -f filename, how to quit the mode without use Ctrl+c to kill the process? What I want is a normal way to quit, like q in top. I am just curious about the question, because I feel ...
`tail -f` until text is seen - Unix & Linux Stack Exchange
I've got a CI server with a command-line interface that allows me to remotely kick-off a job (jenkins CI server and the jenkins-cli.jar tool). After I kick the job off I tail -f the log (sorry for...
How do I tail a log file and keep tailing it when the latest one ...
tail monitors a single file, or at most a set of files that is determined when it starts up. In the command tail -F file_name*.log, first the shell expands the wildcard pattern, then tail is called on whatever file …
What is the difference between "tail -f" and "tail -F"?
Tail will then listen for changes to that file. If you remove the file, and create a new one with the same name the filename will be the same but it's a different inode (and probably stored on a different place …
How to obtain inverse behavior for `tail` and `head`?
1 You can use diff to compare the output of head / tail to the original file and then remove what is the same, therefore getting the inverse.