Month: July 2017

Reference: https://pythonprogramming.net/terminal-navigation-raspberry-pi-tutorials/?completed=/remote-access-raspberry-pi-tutorials/

Code – Use

1. pwd – print working directory  defacult is /home/pi, also is ~
2. cd – change directory: cd /home ; cd ~ ; cd / tab (help to fill possible command) ; cd .. (go back one level of directory); cd ../../ (go back two levels of directories)
3. ls – list contents of directory
4. mkdir – make directory: mkdir exemple (make example folder)

Test Python

1. nano test.py
2. print (‘hi’)
3. ctrl+x; Y
4. python test.py

Download from Internet

1. wget https://www.pythonprogramming.net/static/images/categories/3D-Matplotlib.png
2. sudo apt-get install git
3. sudo apt-get autoremove
4. git clone https://github.com/vinta/awesome-python

Remove file/directory

1. rm 3D-Matplotlib.png (case sensitive)
2. rmdir new
3. rmdir awesome-python
4. rm -r awesome-python (force removing)

ls

1. ls -a ; ls -all (show all contents, including hidden contents)
2. ls -l (contents in list format)
3. ls -al (combine the above attributes)
4. flag: – for short hand and — for full word
5. ls –help

reboot and shut down raspberry pi

1. sudo reboot
2. sudo shutdown -h now
3. sudo shutdown -r now

ODS Tips

Output to text file

[code lang=text]
ODS LISTING file='C:\Users\david\Documents\My SAS Files(32)\9.3\ods\sample.lst';
OPTIONS NONUMBER NODATE;
PROC PRINT DATA=SASHELP.cars(OBS=100);
VAR make model type origin drivetrain msrp invoice enginesize cylinders horsepower mpg_city mpg_highway;
RUN;
OPTIONS DATE;
PROC FREQ DATA=SASHELP.cars;
TABLES make type origin drivetrain enginesize cylinders ;
RUN;
proc means data=sashelp.cars mean median min max skew;
class type origin;
var msrp enginesize horsepower mpg_city mpg_highway weight wheelbase length;
run;
ODS LISTING CLOSE;
[/code]

• .lst file can be opened in SAS by dragging the file to the program edit window.

• click file in the file explorer window will launch sas enterprise guide

• ods listing can be used for record keeping and to check the validity of the sas programming.