Custom Command



Hi guys~!

Today I got some issue on Ubuntu16.04.
Although the Ubuntu is linux base, in ubuntu, we can't use root to login.
Or u have to spend time to figure it out.

So, the issue I met is that I tried to link serial port by some IDE, such as Qt,
but the ttyUSB or ttyS0 ports are set as 550 permission.

To use the port correctly u have to use root or sudo, but u can't run the Qt as root directly
like Windows, in which u just right clicked and run as Administrator.

Things u have to do is :

cd /urpath/Qt/Tolls/QtCreator/bin
sudo ./qtcreator

So... the things I gonna teach u is ... how to write a custom command ~~
LOL, Sorry for tell a long story before the tutorial ahh.

First of all,

write the command u wanna use in txt or .sh whatever u want
command :
cd /urpath/Qt/Tolls/QtCreator/bin
sudo ./qtcreator

A common way to handle this is to use /bin directory,
mkdir ~/bin

put ur script in the folder

mv yourfile ~/bin

make sure u can execute it

chmod +x ~/bin/yourfile

Finally add this to the bottom of your ~/.bashrc file

export PATH=$PATH:~/bin

Okay, now you can use yourfile command in terminal directly~!!!
Cheers~!

THE END

                                        Provide


Location: Hsinchu, East District, Hsinchu City, Taiwan

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