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.

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 …

May 3, 2021 · it might be simple but after looking around I could not find a way to resolve my issue, I am recovering the last line from file1 using tail -1 file1 and want to add it to an existing …

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 …

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 …

tail program output to file in Linux Ask Question Asked 13 years, 3 months ago Modified 7 years, 6 months ago

I tried $ tail -n 1 -f nohup.out but it seems to affect only the initial tailin'. Generally speaking, if it is possible to limit (in this case to 1) the number of lines a command's output has …

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. …

Jul 15, 2018 · How can I continuously print the last line of a file to a single line in the terminal? The following works, but has a high performance hit. while true; do tail -1 /tmp/somelog | tr …

Jun 29, 2015 · I want to see what are the last N commands in my history. I thought history | tail -n 5 would make it, but I noticed that a multiline command counts for as many lines as it has. $ …