Shantanu's Blog
Database ConsultantNovember 17, 2024
Language prediction
FastText library by facebook has the language detection feature.
import fasttext
model = fasttext.load_model("/tmp/lid.176.ftz")
model.predict(" विकिपीडिया पर", k=2)
The above code returns Hindi "hi" correctly. Google also has it's own library called langdetect. The following code returns Marathi "mr" correctly.
from langdetect import detect
detect("आत्मा आणि")
The polyglot library has supported this and other language tools since a very long time.
https://github.com/saffsd/polyglot
October 28, 2024
awk Case Study - 14
1) Download stardict files:
git clone https://github.com/freedict/fd-dictionaries.git2) Download python package to read stardict files:
git clone https://github.com/ilius/pyglossary.git
cd pyglossary/
cp /home/ubuntu/fd-dictionaries/eng-hin/eng-hin.tei .
python3 main.py
# convert eng-hin.tei file to out.txt
Select the first 3 columns:
Change multiple HTML tags to a single pipe | delimiter
and display the first 3 columns
awk '{
gsub(/<[^>]*>/, "|");
gsub(/\|+/, "|");
match($0, /([^|]*\|){3}/);
first_three = substr($0, RSTART, RLENGTH);
print first_three
}' out.txt > test.csv
Labels: awk
October 04, 2024
awk Case Study - 13
I have 2 text files. corpus file is the collection of words and exclude file has all the suffixes. I need to extract the stemmed words after removing all suffixes.
==> exclude.txt <==works
ed
s
ing
ings
==> corpus.txt <==
worked
working
works
tested
tests
find
found
workings
awk -f tst.awk exclude.txt corpus.txt | sort
unmatched find
unmatched found
matched working/s
matched work/ed,ing,s,ings
matched test/ed,s
And the awk script will look something like this...
$ cat tst.awk
{ lineLgth = length($0) }
NR == FNR {
suffixes[$0]
sfxLgths[lineLgth]
next
}
{
base = ""
for ( sfxLgth in sfxLgths ) {
baseLgth = lineLgth - sfxLgth
if ( baseLgth > 0 ) {
sfx = substr($0,baseLgth+1)
if ( sfx in suffixes ) {
base = substr($0,1,baseLgth)
bases2sfxs[base] = bases2sfxs[base] "," sfx
}
}
}
if ( base == "" ) {
print "unmatched", $0
}
}
END {
for ( base in bases2sfxs ) {
sub(/,/,"/",bases2sfxs[base])
print "matched", base bases2sfxs[base]
}
}
September 28, 2024
Firefox and Libreoffice in your browser
Kasm VNC is a modern open source VNC server.
Quickly connect to your Linux server's desktop from any web browser.No client software install required.
1) Firefox using VNC
docker run -d \
--name=firefox \
-e PUID=1000 \
-e PGID=1000 \
-e TZ=Etc/UTC \
-p 3000:3000 \
-p 3001:3001 \
-v /path/to/config2:/config \
--shm-size="1gb" \
--restart unless-stopped \
lscr.io/linuxserver/firefox:latest
2) Libreoffice using VNC
docker run -d \
--name=libreoffice \
--security-opt seccomp=unconfined `#optional` \
-e PUID=1000 \
-e PGID=1000 \
-e TZ=Etc/UTC \
-p 3000:3000 \
-p 3001:3001 \
-v /path/to/config:/config \
--restart unless-stopped \
lscr.io/linuxserver/libreoffice:latest
Labels: aws, docker, firefox, libreoffice, linux tips, usability
September 24, 2024
export to pdf using linux command
You can generate a "pdf" file from Libreoffice writer "odt" file.
File - Export as PDF option is available only if you are using GUIHere is how to convert to pdf using command line.
# vi Dockerfile
FROM ubuntu:latest
RUN apt-get update && \
apt-get install -y libreoffice
WORKDIR /workspace
ENTRYPOINT ["libreoffice", "--headless", "--convert-to", "pdf"]
# docker build -t shantanuo/libreoffice-converter .
run the docker command to convert a file to pdf
# docker run --rm -v .:/workspace shantanuo/libreoffice-converter /workspace/pm_in_paris.odt --outdir /workspace
Labels: docker, libreoffice
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