Github: automated build and publish of containerized GoLang app with Github Actions.

GitLab: glab official CLI tool for repository operations.

yq: replace section of one yaml file with content section of another.

yq: update deeply nested elements in yaml.

Ubuntu: fix apt warning for Dropbox with key in legacy keyring.

Ubuntu: fixing apt invalid signature warnings.

Python: TreeMap visualization of hierarchical Pandas DataFrame.

Jekyll: exporting a WordPress blog to a static Jekyll site on Ubuntu.

Bash: awk to extract Nth match from file based on line separator.

Hugo: exporting a WordPress blog to a static Hugo site on Ubuntu.

OpenWrt: upgrading from older OpenWrt versions to 19.x.

OpenWrt: upgrading to latest version when chipset migrated to DSA support.

OpenWrt: sysupgrade using Attended Sysupgrade.

Linux: ssh client throwing unable to negotiate error.

GCP: list of available GKE cluster versions in region and channel.

Ubuntu: fixing apt NO_PUBKEY errors by converting deprecated keyring to signed-by attribute.

Kubernetes: patch every array element using kubectl and jq.

OpenWrt: bridge VLAN filtering for OpenWrt 21.x with DSA, isolated guest Wi-Fi.

Linux: using openssl to encrypt and decrypt files and strings.

Linux: using nmap to check the secure protocols and ciphers of a site.Linux: Mounting a loopback ext4/xfs filesystem to isolate or enforce storage limits.Linux: Excluding directories when using zip.Linux: Use stat to verify permissions and ownership.Ubuntu: Creating a Samba/CIFS share to quickly share files with Windows.Linux: Using zip/unzip to add, update, and remove files from a Java jar/war.

Valid suffixes for size units are (b|k|m|g). # OR mend original archive, but do not extract content yetĬreate split archive on Linux, extract on WindowsĬonversely, if you want to create a split archive from Linux with 100k per file: 7z -v100k a fromlinux.7z įrom Window you would right-click on the “fromlinux.7z.001” file, and select “Extract here” to unzip the content. Then you can transfer this to a Linux host and use the following to extract it. I find that using 7zip provides easy interoperability across Linux and Windows.Ĭreating a split archive on Windows is detailed in posts like this (Note that it works using either 7zip or zip format). While there are many ways to do the same thing using utilities like zip, split, etc. Taking this a step further and splitting this archive into manageable chunks allows you to take advantage of parallel transfer.

If you are transferring large files between systems, it can be advantageous to create a compressed archive using a tool like 7zip.

7zip command line split zip files