Contents

declare -A trans
trans[G]='C'
trans[C]='G'
trans[A]='U'
trans[T]='A'

for i in $(seq 1 ${#1}); do
  nt="${1:$i-1:1}"
  comp_nt="${trans[$nt]}"

  if [ -z "$comp_nt" ]; then
    echo 'Invalid nucleotide detected.'
    exit 1
  fi

  complement="$complement$comp_nt"
done

echo $complement

Version data entries

300 entries across 300 versions & 1 rubygems

Version	Path
trackler-2.2.1.42	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.41	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.40	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.39	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.38	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.37	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.36	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.35	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.34	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.33	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.32	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.31	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.30	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.29	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.28	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.27	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.26	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.25	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.24	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.23	tracks/bash/exercises/rna-transcription/example.sh