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 …

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 …

7 It means tail -f command will wait for new strings in the file and show these strings dynamically. This command useful for observing log files . For example try, tail -f /var/log/messages.

A simple pipe to tail -n 200 should suffice. Example Sample data. $ touch $(seq 300) Now the last 200: $ ls -l | tail -n 200 You might not like the way the results are presented in that list of 200. For that you …

Here is what I know I can do: tail -n 15 -F mylogfile.txt As the log file is filled, tail appends the last lines to the display. I am looking for a solution that only displays the last 15 lines and get rid of the lines …

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 /...

tail -f my-file.log | grep -qx "Finished: SUCCESS" -q, meaning quiet, quits as soon as it finds a match -x makes grep match the whole line For the second part, try tail -f my-file.log | grep -m 1 "^Finished: " | …

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 …

Looks like a very similar question was asked before. monitor files (ala tail -f) in an entire directory (even new ones) Essentially tail -f does not work as you expect because the * wildcard was expanded at …

You can use this to strip the first two lines: tail -n +3 foo.txt and this to strip the last two lines, if your implementation of head supports it: head -n -2 foo.txt (assuming the file ends with \n for the latter)