Viewing Text and Redirecting Output

Question 1

What command is a used as a file perusal filter for crt viewing.

Answer 1

more

Question 2

What command provides a filter for paging through text one screenful at a time?

Answer 2

more

Question 3

What command outputs the first part of files? And what option specifies the number of lines to print rather then the default of 10?

Answer 3

head
-n

Question 4

What prints lines matching a pattern?

Answer 4

grep

Question 5

What are notable options of grep?

Answer 5

-i which ignores case
-R which reads files under each directory recursively

Question 6

A text viewing utility similar to more but provides more features (allows backward movement)

Answer 6

less

Question 7

What outputs the last part of files

Answer 7

tail

Question 8

What does the -n and -f option do for tail

Answer 8

-n option specifies the number of lines and -f is used to append data as the file grows (a log file)

Question 9

Sort lines of text files

Answer 9

sort

Question 10

The standard input stream

Answer 10

0 stdin

Question 11

The standard output stream

Answer 11

1 standout

Question 12

The standard error stream

Answer 12

2 stderr

Question 13

Output redirection symbols

Answer 13

> > >

Question 14

Input redirection

Answer 14

< «

Question 15

Error Redirection

Answer 15

2>

Question 16

Redirect stdout and stderror (Merge)

Answer 16

2>&1 and &>

Question 17

A pipeline or pipe allows the output of one command to serve as the input of another command

Answer 17

pipeline redirection