Question

For Linux:

Write a command to append the top 20 lines of the file seq.fasta to a second file named combined.seq.

Answer 1

NOTE:- I HAVE ATTACHED THE PROGRAM IN A SEQUENCE OF

1.THE CODE WITH SNIPPET

2.SCREENSHOT OF THE CODE FOR INDENTATION

3.SCREENSHOTS OF THE OUTPUT

------ANSWER-------

CODE

awk 'NR == 1 , NR == 20' seq.fasta >> combined.seq

EXPLANATION

• We are using awk command to append the data from seq.fasta to combined.seq
• Here the passed parameter id NR==1 , NR==20 which means from the line 1 to line 20 retrieve the data.
• After that we specify the source file name as seq.fasta from which we are going to fetch the data.
• Then we use >> that means to append the data to the destination file which is combined.seq

CODE SNIPPET

awk 'NR == 1 , NR == 20' seq.fasta >> combined.seq

SCREENSHOT OF THE CODE FOR INDENTATION

OUTPUT OF THE CODE

SEQ.FASTA CONTAINS

BEFORE EXECUTING combined.fasta

AFTER EXECUTING THE COMMAND combined.seq

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