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Posts Tagged ‘cli’
openssl for netcat use

If you ever have a need for a pipe to netcat, you might want to want to enhance your connection with encryption, here is a short example running the connection with openssl, instead of netcat. openssl s_server -cert /etc/ssl/server.crt -key /etc/ssl/private/server.pem yeah, that’s right, you need a certificate. I reused the one of my webserver. [...]

photoshop for hackers

Had this link sitting in my drafts since 2011/06/09, and since I posted something about photography today, I thought I push this one out as well. Photoshop filters are fine for creative work, but when they are included into a workflow, it gets boring, and prone to errors. So why not run image manipulation in [...]

desktop streaming

Finally I come around to publish an 3.5y old draft. On 20120130 (iso style date), I was closing a project where I needed streaming a (Linux/X11) desktop to (Digital) TVs. So I wanted to flush out my notes to this blog, but never did, until today. You still need to tell the TV to watch [...]

mpeg-dash with ffmpeg for HbbTV delivery … (UHD included!)

When looking (reading) around for other HbbTV projects, I found this blog which has a quick walk through in content conversion for HbbTV. Since this is a quick write up for complete coverage of their destination formats, including the command lines, I post it here, as a cheat sheet, in case your ffmpeg blows up [...]

error handling in bash

another post I found about bash, and how to write shell code that lives for decades, this time for good (and not the horrible nightmare that hounds you down 15 years later). Before following the link, please note that the code example explained therein created some controversy about writing style, capitalizations, and POSIX sh compliance: [...]

parallelism (not really) in bash

while researching about at/atq under linux, I came across this interesting piece of example code, how to run shell processing of files (or file based jobs) in parallel, using bash and makefiles. check it out here

compress pdf on the command line

This is a quick note to myself … when I have to compress PDFs again (e.g. to send out CVs), this command made my day … and the PDF from 2.6 MB to 77KB! gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile=~/compressed.pdf ~/fromprinterdriver.pdf I found it on the address below … there is also an [...]

hidden CLI on netgear switches GS-108T GS-110TP …

If you happen to use one of the ‘smart managed’ switches from netgear, e.g. the GS-108T, or a GS-110TP as in the link below, you might want a CLI to automate the configuration. Unfortunately there isn’t one officially. Luckily there is one, on port 60000 telnet to your switch on port 6000, depending on firmware [...]

commandline pastebin …. DIY …

sprunge(1) SPRUNGE sprunge(1) NAME sprunge: command line pastebin. SYNOPSIS | curl -F ‘sprunge=

Imagemagick ….magic scripts (err formula)

Go to and experience a new level of imagemagick, with Fred’s magic formula. He has scripts for the different usage cases of imagemagick. Of course you need imagemagick, but this on every platform, is another story.