So we are on part 13, well done and thank you to everyone who has stuck with this so far.

So today, I am going to link to three videos, which give more details on specific bash commands. Hopefully this will speed things up a little, there are probably better videos, so please feel free to search, watch and share alternative videos.

• sed – stream editor
• grep – gnu regular expression parser
• cron – job control scheduling

Links

• login link
• Bash Tutorials
• Tuxiversity Forum
• Udemy Course

Tags

#CyberSecurity,#Shell,#Grep,#Sed,#Cron

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In my first ansi weather post I was looking at using sed to strip colour codes from the program output. It turns out and covered in the second post that all that is needed is the -a false argument to the program.

Nevertheless, sed is still worth learning. To this end, the following resources may be useful.

Sed video tutorial

If you save this in to a text file you can follow along with the video. It is similar to the text from the video.

10 Tiny Toes
this is That
One two Three
tree twice

REFERENCES

• Filmsbykris
• sed manual
• Free Software Foundation

TAGS

#YearOfTheFediverse,#gnu,#sed,#text,#manipulation

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Getting weather information is really useful. What happens if you're at the command line in Linux? I found a really little application that can help

ansiweather

apt install ansiweather

ansiweather -l Plymouth, UK

So what else can we do with this

1. Send the output to Mastodon with toot post

This is a two step process

1. ansiweather -l Plymouth, UK > weather.txt
2. toot post < weather.txt

Will send the weather info to Mastodon.

However this does not include any date info

We can fix this with

1. date > weatherinfo.txt
2. ansiweather -l Plymouth, UK >> weatherinfo.txt

then send the whole lot to Mastodon with

1. toot post < weatherinfo.txt

So, if we put this in to a final shell script we need:-

#send weather info to Mastodon
# current date
date > weatherinfo.txt
# current weather
ansiweather -l Plymouth, UK >> weatherinfo.txt
#send to Mastodon
toot post < weatherinfo.txt
# done
echo done

Again released under GPLv3

I tried to get festival to speak the weather, it is not perfect but this sort of works, you will need to direct to weather.txt first.

festival —tts < weather.txt

Looking in to this further, the issue is the brackets etc, so this stackoverflow post

strips out the colour formatting

sed 's/\x1b[[^\x1b]*m//g' weatherinfo.txt

Therefore

sed 's/\x1b[[^\x1b]*m//g' weatherinfo.txt > weatherinfo2.txt

Sends the newly formatted text to weatherinfo2.txt

So running back through festival

festival —tts < weather.txt

Is perhaps a little better, but not perfect

So going back to what we wrote earlier to send to Mastodon, the new script

  1 #send weather info to Mastodon
  2 # current date
  3 date > weatherinfo.txt
  4 # current weather
  5 ansiweather -l Plymouth, UK >> weatherinfo.txt
  6 # clean up output with sed
  7 sed 's/\x1b\[[^\x1b]*m//g' weatherinfo.txt > weatherinfo2.txt
  8 #send to Mastodon
  9 toot post < weatherinfo2.txt
 10 # done
 11 echo done

Produces much nicer output. The top bottom part of this illustrates what was sent before we stripped out the colour formatting

However it still isn't perfect, as it removes part some of the wording, but it is hopefully getting there.

REFERENCES

• Ansi Weather
• Free Software Foundation

TAGS

#YearOfTheFediverse,#Weather,#Scripting,#Bash,#Linux, #Mastodon,#ProblemSolving,#AnsiWeather,#programming, #Stackoverflow,#sed,#cat,#grep,GPL3,#FSF

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