Marine Resources Genomics 2024

Introduction to GNU/Linux

Load an interactive mode in Arina cluster

ssh -Y ikasle01@kalk2020.lgp.ehu.es

interactive -n 4 -p vfast -r mer1

Exercise 1

1. Open your terminal
2. What's the path to your current directory?
3. How many folders does this directory contain?
4. Navigate to /home/username/MER2024/ehu_genomic_data
5. Navigate to your home directory
6. Make a new directory called "linux_intro"
7. Navigate into the "linux_intro" directory

SOLUTION

pwd

ls

cd /home/username/MER2024/ehu_genomic_data

cd

mkdir linux_intro

cd /linux_intro

Exercise 2

1. Create a textfile called "delete_me.txt"
2. Create a directory called "delete_me"
3. Move "delete_me.txt" to "delete_me"
4. Delete the directory

SOLUTION

touch delete_me.txt

mkdir delete_me

mv delete_me.txt delete_me

rm -r delete_me

Exercise 3

1. Save the first line of the file "WatsonCrikck1953.txt" as "papertittle.txt"
2. Save the remaining lines as "mainbody.txt"

SOLUTION

head -1 WatsonCrick1953.txt > papertitle.txt

tail -n +2 WatsonCrick1953.txt > mainbody.txt

Exercise 4

1. How many values are in "numbers.list" file?
2. How many unique values are in "numbers.list" file?

SOLUTION

wc -l numbers.list

sort -u numbers.list | wc -l