dvessel

Useful string manipulation examples for bash and zsh

I need very often to modify filenames or replace/delete their parts across huge number of files. I was using sed command for these purposes but recently I have found out that all these tasks can be easily done directly in bash (or zsh) because both of them support so called string manipulation operations.

String manipulations

Define some example string:

$ file=some_file_name.txt

dvessel

{
    "model_type": "ane",
    "model_config": "v3-3b",
    "backbone_signature": "d95e977fa8053546c6b733aa9d28367d6b23c822",
    "adapter_type_to_signature_mapping": {
        "lora_8": "6c95e384657fa683f8cbd794b893b0171dcc5978",
        "lora_32": "c36b2dd9364c7f12a2d4020f4ebe074458820be7",
        "lora_16": "75f8bce3c9072389a4f73c72390540afde6c93aa"
    },
    "adapter_type_to_symbol_mapping": {

dvessel

{
    "model_type": "mlm",
    "tamm_id": "afm-text-30b-instruct-v5-astc-6x6-20240709",
    "checkpoint": "model.mlm",
    "tokenizer": "afm-text-instruct-multilingual-100k-20240701",
    "original_checkpoint": "bolttorchmodel://x5bhyxgsn7/440",
    "export_date": "07/22/2024-11:36:33",
    "mlm_config": {
        "model_name": "ajax",
        "backend": "metal",

dvessel

$ # plz forgive this dumb method of visualization.
$ cp /System/Library/Frameworks/AppKit.framework/Resources/StandardKeyBinding.dict .
$ plutil -convert xml1 StandardKeyBinding.dict
$ plutil -p StandardKeyBinding.dict | unicode-vis | cat -v | tr '\t' '+'
{
  "^C" => "insertNewline:"
  "^H" => "deleteBackward:"
  "^Y" => "insertBacktab:" //shift+tab
  "^[" => "cancelOperation:"
  "^?" => "deleteBackward:"

dvessel

#!/usr/bin/env zsh

# helper to work with rom paths easier.
# - scans for roms in current working directory.
# - first argument can be a path.
# - if it's not, pass all arguments to lmame.

local rompath=`pwd`
# first parameter can be ambigous. assume directory if it exists.
if [[ -d ${1:a} ]]; then

dvessel

{
  "65536": [
    "alphashift"
  ],
  "131072": [
    "shift"
  ],
  "196608": [
    "alphashift",
    "shift"

dvessel

macOS 10.15 System Preference Panes

Below are a list of System Preference pane URLs and paths that can be accessed with scripting to assist users with enabling macOS security settings without having to walk them through launching System Preferences, finding panes, and scrolling to settings. Not all panes have an accessible anchor and some are OS specific.

To find the Pane ID of a specific pane, open the System Preferences app and select the desired Preference Pane. With the pane selected, open the ScriptEditor.app and run the following script to copy the current Pane ID to your clipboard and display any available anchors:

tell application "System Preferences"
	set CurrentPane to the id of the current pane
	set the clipboard to CurrentPane

dvessel

[Core]
CPUThread = False
GFXBackend = Metal
[AutoUpdate]
UpdateTrack = beta

dvessel

Texture Packs and Resource Packs Information

https://forums.dolphin-emu.org/Thread-how-to-install-texture-packs-custom-textures-info

DDS vs. PNG Packs:

You NEVER want to use both a PNG and DDS pack together, always pick one or the other. The short version is, if a texture pack author provides both a DDS and PNG version of their texture/resource pack, you most likely want to use the DDS version. The reason is that DDS is much faster to load than PNG and is less likely to "stutter" when textures are loaded in. There is a caveat to DDS textures, and that is reduced image quality. But, a properly created DDS texture pack will be nearly indistinguishable from its PNG counterpart.

There are several types of DDS formats, ranging from BC1-BC7, and can also be known as DXT1-DXT5. The format that users should be concerned about in regards to Dolphin texture packs is the BC7 format. If a texture pack is using BC7 DDS textures, the user must have a DX11 capable GPU or the textures will not load. In this case, the

dvessel

url scheme:
x-apple.systempreferences:com.apple.KEY[.KEY]?SUB-PANE

examples:
x-apple.systempreferences:com.apple.systempreferences.AppleIDSettings?iCloud
x-apple.systempreferences:com.apple.preference.keyboard?Shortcuts

urls:

com.apple.systempreferences.ApplelDSettings