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Questions and Answers

Which command is used to create a new session in Tmux?

$ tmux attach -t
$ tmux
$ tmux ls
$ tmux new-session (correct)

What is the shortcut to exit a Tmux session?

Ctrl+B, D (correct)
Ctrl+B + c
Ctrl+B, Ctrl-s
Ctrl+B, Ctrl-r

Which plugin is used to restore a Tmux session after a restart?

tmux-resurrect (correct)
tmux-restore
tmux-plugins
tmux-restart

Which command is used to edit multiple files simultaneously with sed?

-i (A) Signup and view all the answers

What is the purpose of the -n option in sed?

Suppress auto-display (B) Signup and view all the answers

Which command is used to delete lines containing a specific pattern in sed?

d (D) Signup and view all the answers

Which command is used to search for lines that start with 'apple' in a file using grep?

grep '^apple' file.txt (B) Signup and view all the answers

What does the metacharacter '.' represent in regular expressions?

Matches any single character, except newline (B) Signup and view all the answers

Which command is used to print the second column of a space-separated file using awk?

awk '{print $2}' file.txt (D) Signup and view all the answers

Which command is used to delete blank lines in a file named 'old.txt'?

sed '/^$/d' old.txt (C) Signup and view all the answers

Which command is used to remove a file named '*'?

rm '*' or rm * (A) Signup and view all the answers

What is the default delimiter in awk?

whitespace (C) Signup and view all the answers

Which operator in awk is used for exponentiation?

^ (A) Signup and view all the answers

Which awk variable refers to the entire record?

$0 (B) Signup and view all the answers

What is the basic format of a conditional statement in awk?

if (expression) action1 [else action2] (B) Signup and view all the answers