Bash Prank ::

I remember of coming up with a random joke prank, so when I stumbled upon this comment in the /r/bash subreddit, I absolutely had to try it.

I modified it slightly and used a one-liner jokes list I found in Github too. It works in macOS monterey 12.2.1

Here’s what it does:

Sets the volume at maximum
Creates a temp dir in ~ ($HOME)
Downloads a list of jokes from Github
Select one randomly and say it out loud using the computer speakers
Remove the list of jokes

#! /bin/bash
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# Get current volume
cur_vol=$(osascript -e 'output volume of (get volume settings)')

# To restore vol to current level
restore_vol=$(echo ${cur_vol}/14 | bc)

# Get bool if muted
mute_state=$(osascript -e 'output muted of (get volume settings)')

# If system doesn't have gshuf, not gonna work
if [ ! -f $(which gshuf) ] ; then
  exit ; exit
fi

# Set vol to max
osascript -e "set Volume 10"

# Create temp dir
if [ -d ~/temp ] ; then
  tempe=1
else
  tempe=0
  mkdir ~/temp
fi

# Create list of annoying things to say
curl -s https://raw.githubusercontent.com/jpf/dial-a-joke/master/jokes/www.textfiles.com/humor/JOKES/onelinrs.txt > ~/temp/jokes

# Use gshuf to generate radom permutations
# Use -n1 to get a phrase from list
# Pipe it to say to transform text to speech (macOS)
# Select a random voice that supports en_ (english)
gshuf -n1 ~/temp/jokes | say --voice $(say --voice '?' | grep en_ | gshuf -n1 | awk '{ print $1 }')

# Restore volume 
osascript -e "set Volume ${restore_vol}"
if [[ ${mute_state} == "true" ]] ; then
  osascript -e 'set volume output muted true'
fi

# Cleanup
if [[ ${tempe} = 0 ]] ; then
  \rm -Rf ~/temp
else
  \rm -f ~/temp/jokes
fi

Put it somewhere hidden like /usr/local/tmp and change the mod to executable

vi /usr/local/tmp/bashprank.sh
chmod +x /usr/local/tmp/bashprank.sh

Install it using crontab

crontab -e

# I used this one, to run at 11am everyday :P
# 0 11 * * * bash /usr/local/tmp/bashprank.sh