I have the entire hairpin sequences downloaded from the miRbase website. The first few lines look like this
cel-let-7 MI0000001 Caenorhabditis elegans let-7 stem-loop UACACUGUGGAUCCGGUGAGGUAGUAGGUUGUAUAGUUUGGAAUAUUACCACCGGUGAAC UAUGCAAUUUUCUACCUUACCGGAGACAGAACUCUUCGA cel-lin-4 MI0000002 Caenorhabditis elegans lin-4 stem-loop AUGCUUCCGGCCUGUUCCCUGAGACCUCAAGUGUGAGUGUACUAUUGAUGCUUCACACCU GGGCUCUCCGGGUACCAGGACGGUUUGAGCAGAU cel-mir-1 MI0000003 Caenorhabditis elegans miR-1 stem-loop AAAGUGACCGUACCGAGCUGCAUACUUCCUUACAUGCCCAUACUAUAUCAUAAAUGGAUA
I want to extract just the human hairpin sequences from the entire file. I have used the grep command as follows
grep hsa-mir hairpin.fa > human_hairpin.fa
However, it only extracts the header line but I need the sequences as well like this.
hsa-mir-548ab MI0016752 Homo sapiens miR-548ab stem-loop AUGUUGGUGCAAAAGUAAUUGUGGAUUUUGCUAUUACUUGUAUUUAUUUGUAAUGCAAAA CCCGCAAUUAGUUUUGCACCAACC
Which commands should I follow?