These are misc useful commands using linux command line
spliting and combing PDF Link to heading
pdfseparate -f 1 original.pdf output-page%d.pdf
qpdf --empty --pages `cat l` -- all.pdf
HP printer Link to heading
These are some commands to document hplip linux HP printer utils.
sudo apt install hplip-gui hplip
hp-scan
Network manager Link to heading
nmcli
Bluetooth Link to heading
bluetoothctl
agent on
scan on # wait for your device's address to show up here
scan off
trust MAC_ADDRESS
pair MAC_ADDRRESS
connect MAC_ADDRESS
Fresh linux essentials Link to heading
sudo apt install htop ripgrep vim ncdu python3-virtualenv acpi
Reduce desk space Link to heading
These few things to do to reduce the file system usage.
sudo apt install localepurge
sudo apt autoremove
sudo apt autoclean
remove venv
find . -type d -name venv -exec rm -rf {} \;
find . -type d -name .venv -exec rm -rf {} \;
use ncdu to hunt down big folders on root
ncdu -rx /
delete .cache
rm ~/.cache/* -rf
dpkg-query -Wf '${Installed-size}\t${Package}\n' | column -t
Image and pdf manipulation Link to heading
Combine JPG to PDF
convert -append doc.1.JPG doc.2.JPG doc.combined.pdf
Compress pdf to smaller than 2MB
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=doc.compressed.pdf doc.compressed.pdf
Separate PDF
pdfseparate -f 1 doc.pdf doc.separated.%d.pdf