Unix HW 4

COP3353 – Introduction to Unix Spring 2024 Homework 4 Due Sunday Night, February 11, 2024 ►Claire Medley◄ Questions: Lab 1 – Patch Question 1 – Apply the Patch in the instructions : What did the patch add to the original file? The patch added a new line that said “Abraham Lincoln” and “1863.” Questions: Lab 2 - Grep Question 2 – Using only grep , what is the command to display the lines of jw containing the word stood Grep his jw Question 3 – What piped commands do the same as above, but using cat piped to grep . (This is sometimes called “Useless use of cat” but it’s the way the Unix creators intended). Cat jw | grep his Question 4 – Use man grep to find how to select only the lines containing matches that form whole words . List all the lines in Jabberwocky that contain the word ' in '. (Tip: Use the search feature in the man page – man uses less to display text, and less uses / as the hot-key for searching). Write only the command here: grep –w lt jw Questions: Lab 3 – File Permissions Run ls -l /home/faculty/lockwood/.plan (This is in your instructor’s directory) Question 5 – Is this a file or a directory? A file Question 6 – Look at the file permissions for /home/faculty/lockwood/.plan a. Who among our colleagues can read or write it? b. What are the file permission shown by ls -l ? c. What are the octal (numeric) file permissions shown by stat ? a. computer science faculty b. -rw-r---r-- c. 0644 Question 7 – Can you see the contents of /home/faculty/lockwood/.plan using less or