Using Pdfunite

This method is fast and the resulting combined PDF doesn't loose details. There have been reports though, that the resulting combined file is very big and that clickable URLs in the document are lost.

# pdfunite in1.pdf in2.pdf in3.pdf out.pdf


Using Ghostscript

Alternative 1

# gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf mine1.pdf mine2.pdf


Alternative 2

Should give a smaller merged PDF. Below should be all on one line.

# gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=output.pdf input.pdf



Vad är detta?

Anteckningar och minnesnotiser relaterat till wifi som jag ofta använder eller behöver kolla upp.
Band och kanaler relevanta för Sverige enbart.


Kanaler och frekvenser för 5 GHz-bandet



Antal 20 MHz Kanaler 

Antal 40 MHz Kanaler 

Frekvens (GHz)



36, 40, 44, 48




Låga bandet, U-NII-1

Inomhus max 200 mW ERP. Ej DFS.

52, 56, 60



Scheduling file transfers from Linux to Windows to Owncloud

This is somewhat convoluted, but works, and also offers a backup of sorts as a bonus.

The steps

  1. Download and install WinSCP on your Windows computer.

  2. Create a site account to your linux computer in WinSCP. Save the password.

  3. Login to the linux site.

  4. Click on the file or folder you want to schedule a transfer for.

  5. Click menu Files/File names/Generate file URL.
    1. Check User name, SSH host key and Password.
    2. Click