Linux commands: tail
New Course Coming Soon:
Get Really Good at Git
A quick guide to the tail command, used to watch files for changes
The best use case of tail in my opinion is when called with the -f
option. It opens the file at the end, and watches for file changes. Any time there is new content in the file, it is printed in the window. This is great for watching log files, for example:
tail -f /var/log/system.log
To exit, press ctrl-C
.
You can print the last 10 lines in a file:
tail -n 10 <filename>
You can print the whole file content starting from a specific line using +
before the line number:
tail -n +10 <filename>
tail
can do much more and as always my advice is to check man tail
.
This command works on Linux, macOS, WSL, and anywhere you have a UNIX environment
Are you intimidated by Git? Can’t figure out merge vs
rebase? Are you afraid of screwing up something any time
you have to do something in Git? Do you rely on ChatGPT
or random people’s answer on StackOverflow to fix your
problems? Your coworkers are tired of explaining Git to
you all the time? Git is something we all need to use,
but few of us really master it. I created this course to
improve your Git (and GitHub) knowledge at a radical
level. A course that helps you feel less frustrated with
Git. Launching Summer 2024. Join the waiting list!
→ Get my
Linux Command Line Handbook
Here is how can I help you:
- COURSES where I teach everything I know
- THE VALLEY OF CODE your web development manual
- BOOTCAMP 2024 cohort in progress, next edition in 2025
- BOOKS 16 coding ebooks you can download for free on JS Python C PHP and lots more
- SOLO LAB everything I know about running a lifestyle business as a solopreneur
- Interesting links collection
- Follow me on X