Simple shell script to help solve Wordle. It will tell tell you what the answer could be based on the yellow/green/black squares you have discovered so far.

wordle.sh

#!/bin/zsh

# Get all the 5 letter words. This only needs to be generated once,
# so do it outside the script and leave the file on disk.
# grep '^.....$' /usr/share/dict/words > 5LetterWords.txt

# All the known green letters as a regex, e.g. `greens 'AB.C.'`
greens() {
  grep -i $1
}

# Yellow letter in the 1st position
y1() {
  grep -i $1 |
  grep -i -v $1'....'
}

# Yellow letter in the 2nd position
y2() {
  grep -i $1 |
  grep -i -v '.'$1'...'
}

# Yellow letter in the 3rd position
y3() {
  grep -i $1 |
  grep -i -v '..'$1'..'
}

# Yellow letter in the 4th position
y4() {
  grep -i $1 |
  grep -i -v '...'$1'.'
}

# Yellow letter in the 5th position
y5() {
  grep -i $1 |
  grep -i -v '....'$1
}

# Black letter (position doesn't matter)
b() {
  grep -v -i $1
}

result=$(

cat 5LetterWords.txt |

# Enter all the known info and pipe it all together
greens 'S...E' |
y1 l | y3 o |
b f | b r | b i | b t |

sort -u)

echo $result | less

wordCount=$(echo $result | wc -l)
echo $wordCount words