HOWTO convert webp to png, and from webm to mkv with ffmpeg

 # image conversion

convert input.webp output.png

# video conversion

ffmpeg -i input.webm  -c:av copy  output.mkv

HOWTO batch processing images on linux or mac osx

#  batch enhance images or batch making thumbnails

for file in *.jpg; do

  convert -enhance -equalize -contrast $file "${file%.jpg}_new.jpg"

done

# other options calling convert

#  convert -auto-gamma -auto-level -normalize original.jpg improved.jpg

#  convert dragon.gif    -resize 64x64  resize_dragon.gif

# ref:  http://www.imagemagick.org/Usage/resize/

dictionary word lists

every unix-based os has a dictionary word file 

$ wc  /usr/share/dict/words

  235886  235886 2493109 /usr/share/dict/words

online resources

https://github.com/dwyl/english-words

http://www.mit.edu/~ecprice/wordlist.10000

http://www.math.sjsu.edu/~foster/dictionary.txt

http://wordlist.sourceforge.net/

mx linux 加 倉頡輸入法

(for English, scroll down to the bottom)

單擊左下方Menu，開 "mxlinux package installer"

搜尋 Chinese input

安裝

在 stable repo 之下

選 ibus cangjie 3

(如果需要輸入 簡体字，可用 cangjie 5， 詳見 https://zh.wikipedia.org/zh-tw/倉頡輸入法)

安裝然後退出

單擊 menu

選 ibus preference

在 English 外加 cangjie input

如有需要，改鍵盤熱鍵

退出

登出再登入，或重啟電腦

好了，have fun!

* * * 

from start (menu), launch  "mxlinux package installer"

search for chinese input

click install

in stable repo

select ibus cangjie 3

click install

close

menu> ibus preference

add cangjie input along with english

change keyboard short-cut if required

close

restart computer (or relogin should work)