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What does tail -f do? - Unix Linux Stack Exchange 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
How does the tail commands -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 when you really want to track the actual name of the file, not the file descrip- tor (e g , log rotation) Use --follow=name in that case That causes tail to track the
tail -1 file1 gt; gt; file2 without \n - Unix Linux Stack Exchange 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 file that is a
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 on your disk) tail -f fill not retry and load the new inode, tail -F will detect this
How to quit `tail -f` mode without using `Ctrl+c`? 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 - How to limit the number of lines a commands output has . . . 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 available visible it would solve this problem
Show tail of files in a directory? - Unix Linux Stack Exchange 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 can control the order of the results that ls outputs through a variety of switches For example, the data I've generated is numeric