How would you go about making a file

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Reference no: EM133240162

Question 1. Assume you have a file called sequences.fasta that contains many FASTA sequences. Use UNIX command that extracts the sequence headers and stores them in a file called sequences.accessions. There are numerous approaches that can be taken. What is your solution? Please test with your own FASTA sequences.

A FASTA sequence has the following format:

>ABC123 AGCTTTCGGGCCAAATTT

The > line is the header or comment line that contains the accession numbers and/or summary information about the sequence, such as where it came from. The following line(s) contain the actual sequence (nucleotide or protein).

Question 2: Assume you have a directory of sequence files. How would you go about making a file that contains a list of only those files whose names begin with MEF, were last modified in February, and are sorted by size? Use pipes.

Reference no: EM133240162

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