GnuPG is a powerful cryptographic tool that enjoys widespread support by F/LOSS mail user agents. However, due to a lack of conventional public key management it is plagued by key-related issues. One such issue is the expiry of GnuPG keys, which often goes unnoticed by affected messaging partners until such time when it actually disturbs […]
Artikel in Kategorie "Programmierung"
WordPress Plugin to embed Gitea Repositories
29. September 2023 in Administration, GNU/Linux, Programmierung, Technik.
I ported the WordPress plugin providing shortcodes for embedding Gitlab projects into posts and pages to a Gitea version. Below is a usage example, displaying the latest 3 commits and the latest release (if any) from repository „linuxfoo-gitea“ on my Gitea instance: Gitea project linuxfoo-giteaLast 3 commits: by root: 35962433 correct json pat to commit […]
Print all indented Lines following a non-indented Line
29. April 2024 in GNU/Linux, Programmierung.
Some configuration and output text formats contain sections like the following: foo: value1 value2 bar: value 3 In this article, two scripts are presented that print all consecutive indented lines that follow a non-indented line that matches a search pattern given by a regular expression. This means, given the single argument foo and the standard […]
A simple GUI for basic Package Management with Apt
29. Januar 2024 in Administration, GNU/Linux, Programmierung, Technik.
The tool presented here, „Simple Apt Update“ (simple-apt-update) is nothing more than a front-end to the non-interactive execution of apt-get update|full-upgrade and apt list –upgradeable. It can look like this:
Maintaining Multi-Line „stat“ Formats using Bourne Again Shell
20. August 2023 in GNU/Linux, Programmierung.
The stat command from GNU core utilities features not only a –format FORMAT option but also a –printf FORMAT one, the difference being that the latter allows for backslash escapes such as \n. This allows for custom per-file report formats containing newlines, for example: stat –printf ‚Name: %n\nSize: %s Bytes\n‘ /etc/passwd If the format string […]
Make a Bourne Again Shell Script Log its Output to a File
20. August 2023 in Administration, GNU/Linux, Programmierung.
The Bourne Again Shell script presented in this article demonstrates techniques related to capturing and logging output (standard output and standard error stream) of a script into a log file while also delivering it to the regular output destinations (for example the terminal or whatever the caller has chosen to redirect to). Some questions are […]
Using sed or awk to ensure a specific last Line in a Text
20. August 2023 in GNU/Linux, Programmierung.
Given a file containing bytes of text with lines separated by the newline character (\n), one of these lines can be said to be „the last line of the file“; it is a sequence of bytes occurring in the file, for which holds: The sequence contains no newline character, and the sequence is followed by […]
Removing the Builtin Inline CSS from WordPress
27. August 2022 in Programmierung.
Should you – as i did – wonder why WordPress renders a bucket of inline CSS into the HTML output (such as –wp–preset–font-size–normal in <html> or –wp–preset–color–white in <body>): This is done to accomodate frontend editing with Gutenberg. If you – as i do – are not using Gutenberg frontend editing, then the following PHP […]