please can someone explian how I can do those, Thanks you. Problem 1 In the pass

ID: 3760621 • Letter: P

Question

please can someone explian how I can do those, Thanks you.

Problem 1

In the passwd file, locate users who are daemons. This is usually signifed by the user Id ending with a d, such as printd, sshd, etc.

Once that line has been identified, append :daemon to the end of the line.

So :
sshd:x:114:65534::/var/run/sshd:/usr/sbin/nologin Will look like :
sshd:x:114:65534::/var/run/sshd:/usr/sbin/nologin:daemon

Problem 2

In the file, etcSlist, one of the columns is separated by at least 24 spaces, replace the 24 spaces with 4 spaces. Use the brace range, {}.

Problem 3

Use -n option with sed and print only lines from passwd where the user Id, 1st column, is 4 to 6 characters long.

Problem 1:

sed -i '/^[a-z]*d:.*$/:daemon/' answers.txt

Problem 2:

sed -i -e 's/ {24}/ /g' etcSlist

Problem 3:

sed -nr '/^[a-z][a-z][a-z][a-z][a-z]?[a-z]?:.*/p' passwd

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.