My kote blog
DevOps articles and notes
How to quickly remove old files or likely old log files using bash? Just a few lines in bash can solve it.
Firstly, list all files older than 7 days for required directory:
find /home/my-user/my-logs -type f -mtime +7
After that, delete all those files:
find /home/my-user/my-logs -type f -mtime +7 -delete
Here are the man page for the find command in arch manual page.
Logs, logs, logs… they are everywhere! While scanning another endless log file, I wondered if there is any difference in the speed and performance of popular text editors when working with large log files. It turns out there is! Let’s compare Notepad, Notepad++, TextPad, and Atom in the speed of text search in log files.
Let’s focus on the following:
SSH keys can be used as an excellent choice for authenticating remote hosts. Using keys instead of simple usernames and passwords have many advantages, however, what is more, essential for me to – use an ssh key helps establish a connection faster and more secure. Let’s review how to create, share and use keys. Continue reading “Working with SSH keys for remote sessions in Linux”
HSTR or HH is a great tool that speeds up console usage due to the intelligent search for recent and favorite commands. Before that, I used to have a few hacks like running grep for history ($ history | grep {my-search-request}), but with a new HH help, I feel like I can focus on tasks and not worry about recent commands entered as they can be accessed fast and convenient.
Continue reading “HSTR (HiSToRy) – Advanced console history search”
While moving CI scripts from Jenkins to GitHub Actions, I faced an issue with moving secrets and other environmental variables. Here are a few groove scripts that help me obtain most of the “Secret text”, “Username and password” and other creds that Jenkins stores. Continue reading “Get secretes from Jenkins”
Some of my bash scripts were not running with the following error:
$ ./test-script.sh -bash: ./test-script.sh: /bin/bash^M: bad interpreter: No such file or directory
After some googling, it turned out that on Linux host script files should have a specific line break(LF), and using default Windows (CRLF) is not supported.
