Questions tagged [tail]
The tail is the part of a list that comes after the head. It's also a unix command that shows the last lines of a file.
tail
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Linux shell - Output ping to file and only keep last X lines
I want to write a shell-Script for my Raspberry Pi to permanently ping a specific host but only keep the last 20 results in a text file.
So my idea was to redirect the ping output to a text file and ...
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Powershell following rotation of log file
I know that is not a good idea runs a script for ever but, I need to continuously tail a log file, for some days, to get the evidence of some errors.
Problem is that this log file rotates multiple ...
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Deleting selected element in a doubly linked list [duplicate]
I have written a code on deleting a node by comparing its data from the data given. If equal, it deletes the node. My problem is that my code will delete every node in the list except the last node, I ...
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What is the purpose of tail -f /dev/null, usually at the end of scripts?
Before you light your torches:
I know what /dev/null is
I know how I/O redirection works in shell commands
I know what tail and -f flag does
However, I cannot grasp the reason for using the ...
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how can i tail the last line of multiple log files, only if they have not completed yet?
I have multiple subdirectories, and each has a log file that I want to check, but I only want to check the log files that have not reached the "completed" state. The last line of a completed ...
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Quit tail -f command from script
I am doing tail -f -n 10 test.log .
I want this tail command to terminate once a signal file is created at some location .
say finish.txt. If finish.txt file exists then stop tailing or else continue
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How to interact with an application on a remote computer via tail?
There is a need to send commands to a remote application via tail. Locally I'm currently using tail, I want to control it remotely, but I can't get it to work.
I tried paramiko libraries, I couldn’t ...
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Input field is not showing character tails
I am having a problem creating my web page. I am using a downloaded font, which looks correct everywhere except in the input field.
The tails of the characters g, q, y, p, j do not show correctly in ...
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Tail log file with Powershell and email but only on first occurrence until next time
I've found the following script to send an email when a string is found in a log file
Get-Content C:\temp\server.log -Wait -Last 0 |
Where-Object { $_ -match "ERROR \[STDERR\]" } |
ForEach-...
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Suddenly docker tail command stops giving live docker container logs in some of the services
Hope everyone doing well!
I have production environment which runs multiple docker containers on the ubuntu server. Since last 5 to 6 days I am facing issue in some of the services where suddenly ...
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Monitoring a file that gets created by a sub-program executed in my in c++ program
I'm executing a script from my c++ code. During its execution this script (say my_script) writes some information to a file (say a.txt) and I want to print that information in my main program's ...
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Tail and grep docker logs
How can I both tail and grep Docker logs? I've tried the following:
sudo docker logs -f my_container | grep foo
This should tail all lines with foo from the container's logs, but instead shows ...
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Haskell basic - pattern matching vs list tail
I'm doing Set7.hs from haskell.mooc.fi/ Exercises7
-- Ex 5: reverse a NonEmpty list.
--
-- PS. The Data.List.NonEmpty type has been imported for you
-- below doesn't work
-- reverseNonEmpty :: ...
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How to return the last two lines of summary output from a linear model in R?
After finding a regression prediction in lm I want to return only last two lines of the summary. What would be the best function to use?
my_model_lm(y ~ x1 + x2 + x3, data = [data])
summary_result <...
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Questions about tail -c [closed]
When I open my terminal and input the command echo 987654321 | tail -c3, the output is 21.
However, when I create a file named test_tail.sh, write 987654321 into the file, the command tail -c3 ...
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