for filename in *.jpg; do newname=echo $filename | sed ‘s/xxx/yyy/g’; mv $filename $newname; done
for filename in *.jpg; do newname=echo $filename | sed ‘s/xxx/yyy/g’; mv $filename $newname; done
cat ~/.ssh/id_rsa.pub | ssh USER@HOST "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
Let’s say you have a raspberry running at home and you want to access it from your office. If you have a google router you can easily set up IPv4 port forwarding 2222 -> 22 At this point from the office you can ssh -p…
Let’s say you need to run a process like a lightweight private npm proxy registry such as Verdaccio and you do not want to use a Docker container. You can run a simple command as noup verdaccio & . It might happen that the process…
echo "bla bla word word1 = string1 string2" | sed -e 's/.* \([^ ]*\)=.*/\1/g' Some basic regexp hints: the first /…/ is what your string should match s means substitute/replace the last /…/ is the replacement g means global, replace all occurrences a . will…
A very philosophical question, this one. I see modern those languages that were not there a couple/few years ago. Definitely java is seen as the older, more enterprisey technology. I don’t think many startups in silicon valley use it, they use more php (facebook), python,…
I came across to a great HTML Presentation Framework: reveal.js, which is a framework used to create stunning presentations using either a visual editor or simple text. https://github.com/hakimel/reveal.js/ Its create flexibility allows me to create my slides using Markdown https://help.github.com/articles/markdown-basics and convert everything by using…
Fields are declared outside of a class’s methods and are usually found right below the class declaration. Fields can be accessed by all methods of a class. They can also be accessed from other classes (unless they are private) using the dot operator. If a…
The below command will resize the image to 50GB VBoxManage clonehd "source.vmdk" "cloned.vdi" –format vdi VBoxManage modifyhd "cloned.vdi" –resize 51200 VBoxManage clonehd "cloned.vdi" "resized.vmdk" –format vmdk