Contents

#!/usr/bin/env bash

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

96 entries across 96 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.179	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.178	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.177	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.176	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.175	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.174	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.173	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.172	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.171	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.170	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.169	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.167	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.166	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.165	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.164	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.163	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.162	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.161	tracks/bash/exercises/rna-transcription/example.sh
trackler-2.2.1.160	tracks/bash/exercises/rna-transcription/example.sh