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.
Dec 17, 2023 · How to tail -f multiple files and grep each file individually in single output? Ask Question Asked 2 years, 2 months ago Modified 2 years, 1 month ago
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.
Dec 22, 2022 · tail -f file prints the last 10 lines that were initially in the file and waits and prints all the additional lines that come thereafter. To print all the initial lines and all following, use tail -n +1 -f file.
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.
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.
Feb 20, 2024 · tail --bytes 100M logfile.log | tail However, if you're using GNU Coreutil¹'s tail implementation, that already does this (i.e., it seeks to the end of the file minus 2.5 kB, and looks.
The point is that tail -f file1 file2 doesn't work on AIX where tail accepts only one filename. You can do (tail -f file1 & tail -f file2) | process to redirect the stdout of both tail s to the pipe to process.
Oct 22, 2023 · Hello I would like to know if there is a way where I can only use head, tail, and pipes (and redirection eventually) to extract and output the start, middle characters, and end of a string Example:.
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: " |.
