Sep 29, 2019 · I tried to use tail xxxx.log | nl to get last 10 lines and their line numbers, but nl command only counts the lines of tailed result. Say there're 20 lines in that file, the returned …

Nov 28, 2013 · Barring your files don't include strange characters in their names, such as spaces, new lines, etc. A simple pipe to tail -n 200 should suffice. Example. Sample data. $ touch …

The middle sections are slightly trickier -- I was thinking about piping tail output into head ( tail -4001 file.txt | head -4000 > section2.txt), but is there another/better way? Actually my logic is …

Jul 12, 2014 · On Ubuntu you can log in via SSH and use the Linux tail command to display the last x number of lines of your /var/log/auth.log file. When you’re logged in via SSH use the …

Sep 21, 2012 · When (head -n2;tail -n2) is used in a pipeline, it doesn't print the last lines when the last lines are part of a block of input that is consumed by head: $ seq 1000|(head -n2;tail …

Raku can perform head and tail operations as well *, and a more efficient approach may be to read the file using lines then head the resulting anonymous array, leaving off the last element. …

watch -n 5 -x tail -4 output.log watch -n 2 -x ls The first eg. will display the last 4 lines of output.log file every 5 sec., second eg list content every 2 sec. Share

Dec 28, 2016 · When I ps -ef | grep script.sh and I kill that script, I can always see the tail and grep processes of the same script still alive. another thing is that the process id of the tail is …

Let's put it this way: tail is just right for the structure of the problem to solve, but wrong for the kind of data. GNU coreutils. Looking further, it turns out that thee GNU coreutils, the collection of …

Jun 21, 2014 · Alternatively, you can use head and tail in combination: tail -n +10 input.txt | head -n 91 > output.txt This time, tail -n +10 prints out the entire file starting from line 10, and head -n …