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How to pipe the stderr to less
ByQ A
For example, try to less the error messages generated by the compiler with make | less Use this command: make 2>&1 | less or, if you want stderr only: make 2>&1 >/dev/null | less Read more: How to judge whether its STDERR is redirected to a file in a Bash script on Linux? How to…
How to efficiently take screenshot on Windows 7
ByEric Ma
I am tired of the non-efficient “Print Screen” -> Paste in Paint -> Save way. How to efficiently take screenshot on Windows 7? On Windows 7 and later ones, the “Snipping Tool” is handy. Press the “Win” key and input “snipping tool”. The tool will appear in the menu. You can select the whole window,…
How to config network in host (wireless network) for QEMU guest os
The host os is connected into network by wireless one so how to let its guest os connect network. Take [1] as a reference. I run it successfully with following steps. 1, create /etc/qemu-ifup script and chmod it. 2, start a qemu guest os with command sudo ./qemu/qemu-system-x86_64 -enable-kvm -m 1024 -drive file=marss_dram.qcow2 -vnc 127.0.0.1:0…
Linux | Software | Tutorial | Virtualization
Running Ephemeral Docker Containers – Automatically Remove a Docker Container After Running It
Docker is a convenient tool to quick create containers from different Linux images. If we use the common way to start a docker container like docker run image bash, after the the process exists, the container is still stored there. That is, the docker container persists after it has exited. Sometimes, we would like to…
How to make Chrome on iPhone (iOS) accept self assigned ssl keys fir websites?
ByEric Ma
This tutorial introduces how to make Chrome accept self assigned ssl keys for websites: https://www.systutorials.com/50204/making-chrome-accept-self-signed-certificates-on-linux/ However, on iPhone, Chrome blocks me from access sites with self assigned keys. How to make Chrome on iPhone also accept the ssl keys? At the time when I wrote this reply, there is no way to add Certificate Authorities…
How to Turn GNOME terminal to a Pop-up Terminal
ByEric Ma
A pop-up terminal is great and handy on Linux and similar OS. On KDE, Yakuake is great. On Gnome or GTK, I ever tried Guake. It is quite good. However, it has not been as mature, stable and figure-rich as gnome-terminal. One day, I got this idea: why not using a script/program to manage the…