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 …

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 /...

Dec 17, 2023 · How to tail -f multiple files and grep each file individually in single output? Ask Question Asked 2 years, 3 months ago Modified 2 years, 3 months ago

Is it possible to do a tail -f (or similar) on a file, and grep it at the same time? I wouldn't mind other commands just looking for that kind of behavior.

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 …

The problem is that tail program buffers its input file until it get a eof condition, then it prints out the last lines (10 by default). Most likely you are interrupting it with ctrl-c combination that terminates it, thus …

How do I use nohup and tail it in one command Ask Question Asked 9 years, 2 months ago Modified 9 years, 1 month ago

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.

The tail command will keep following the same file forever, even if a more recent log file is created afterwards. If you want to automatically switch to a different file, you need a more sophisticated …

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: " | …