**Note: This is a UNIX question. You're given a very large FASTQ file and need to rapidly find how many sequence entries it contains. You know that each entry requires 4 lines. Pretending that the file is called q1.fastq, what built-in shell command can you use to help?
Added by Michelle F.
Step 1
First, we need to count the total number of lines in the file. We can use the `wc` command with the `-l` option to count the lines: `wc -l q1.fastq` Show more…
Show all steps
Your feedback will help us improve your experience
Supreeta N and 66 other AP CS educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Write a GREP command in Bash that will search the file "lotsofdata.txt" for strings that match the following: - Any string whose format is the same as a variable name in C++ - Any IP address (for example, 192.168.1.200) - A username composed of at least three alphanumeric characters or digits followed by four digits - A hexadecimal number written in C++ (for example, 0xAD8f).
Aarya B.
Which of the following commands can be used to read the entire contents of a file as a string using the file object tmpfile? a. tmpfile.read b. tmpfile.readlines c. tmpfile.readline() d. tmpfile.read()
Paul G.
How can you read all of the items in a file without knowing how many items the file contains?
Haricharan G.
Recommended Textbooks
Computer Science and Information Technology
Introduction to Programming Using Python
Computer Science - An Overview
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD