Author Archives: albertsk

Unknown's avatar

About albertsk

Professor at the University of Hawaii

How to avoid long URLs in LaTex

Add the following line at the beginning of your LaTex file before \begin{document}.

Posted in Blog, LaTex, Lyx | Leave a comment

How to add compiling time in Lyx/LaTex

Include this package in the header part, \usepackage{datetime2} within \date{created on Sun Feb 13 10:00:15 AM HST 2022, last modified on \DTMnow}

Posted in Uncategorized | Leave a comment

How to convert mp4 to text using command line in Ubuntu

Convert a mp4 file into wav file ffmpeg -i file.mp4 -ar 16000 -ac 1 file.wav convert the wav file into a text file pocketsphinx_continuous -infile file.wav 2> pocketsphinx.log > myspeech.txt

Posted in Uncategorized | Leave a comment

How to trim a mp4 file in Ubuntu

The following command is to trim “INPUT.mp4” from start time 00:00:00 for a total play duration of 01:33:00, and save it as “OUTPUT.mp4“. No matter what the INPUT.mp4 file size is, this command is done almost immediately.

Posted in Uncategorized | Tagged , | Leave a comment

How to use GitHub

https://guides.github.com/activities/hello-world/

Posted in Uncategorized | Leave a comment

LaTex/Lyx customized template store and use

Posted in Uncategorized | Leave a comment

How to remove “Reference” section name in LaTex

Posted in Uncategorized | Leave a comment

awk – calculation of sums of rows and columns

awk command in a bash script mydata.dat file

Posted in Uncategorized | Leave a comment

How to generate a unique directory for each run using Makefile

In command line, one can execute to have 10 different directories in sequence.

Posted in Uncategorized | Leave a comment

Emacs scroll-step

Posted in Uncategorized | Leave a comment