mounting ntfs drive: wrong fs type, bad option, bad superblock on /dev/sdh2, missing codepage or helper program, or other error.

sudo mount -o ro /dev/sdh2 /tmp/a

Start libreoffice in dark theme from distrobox on nix os through .desktop file

On Host, after exporting the libreoffice from distrobox, edit e.g. ~/.local/share/applications/abox-libreoffice-calc.desktop and add "env GTK_THEME=Adwaita:dark": Exec=env GTK_THEME=Adwaita:dark /run/current-system/sw/bin/distrobox-enter -n abox -- libreoffice --writer %U

terminator: change size and location

terminator --geometry=2420x650+80+800

ssh: LocalForward in ssh config file

Example to forward vnc 5901 port from server to client's 5903 port:
Host myserver
    HostName serverip
    User ubuntu
    IdentityFile ~/.ssh/private.pem
    LocalForward 5903 localhost:5901


lsblk: list model name of hard drive

lsblk -o NAME,FSTYPE,LABEL,MOUNTPOINT,SIZE,MODEL

Niri: Set Adwaita mouse cursor in Niri.

cursor {
xcursor-theme "Adwaita"
xcursor-size 28
}


sudo fail login blocked

faillock --reset

Niri: share clipboard between Niri and Vnc

https://github.com/dnut/clipboard-sync
https://aur.archlinux.org/packages/clipboard-sync

pandoc: Word to markdown

pandoc input.docx -t markdown_strict -o output.md

Join lines in a file with a comma

paste -sd ',' myfile.txt

Add Browser MCP to Claude Code

claude mcp add-json browsermcp '{ "type": "stdio", "command": "npx", "args": ["@browsermcp/mcp@latest"]}'
https://github.com/browsermcp/mcp

Linux: convert docx to markdown using pandoc

pandoc -f docx -t markdown_strict input.docx -o foo.md From: https://stackoverflow.com/a/33149947/248823

Linux: join pdf files into one file in a reverse order

pdftk $(ls -r *.pdf) output joined.pdf

Convert all pdf files to txt files

find . -name '*.pdf' -print0 | xargs -0 -n1 pdftotext

Linux: ollama chagne default model location

Stop ollama sertice
Run systemctl edit ollama.service.
Add the line Environment="OLLAMA_MODELS=/path/to/new/location" under the [Service] section.
Save and exit the editor.
start ollama sertice


Joni pdf files into one file using pdftk

pdftk base.pdf 1.pdf 2.pdf 3*.pdf output joined.pdf

qpdf: join pdfs into a single pdf file

qpdf --empty --pages *.pdf -- joined.pdf

Linux: Copy all files from subdirectories into one folder

find zfiles/* -type f -mindepth 2 -print0 | xargs -0 cp -t ./sub1

Linux: json to parquet

Use: https://github.com/domoritz/json2parquet ~/.cargo/bin/json2parquet -c zstd data_000000.json data_000000.parquet

qrencode: create pdf QR code

qrencode -s 6 -l H -o "URL.png" "https://some-url"