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UNIX Lesson 4
1. The grep program
searches for a command on the system
searches a file or files for lines that have a certain patter
searches a group of directories for a particular file
appends the output to a file
2. Which symbols sends the standard output of one program to the standard input of another program?
<
>
|
3. The -c flag for the grep command
prints the matches in all capital letters
prints only the name of the file
prints only the number of matching lines
4. To make a program write to a file instead of standard output, use which of these symbols?
|=
<
>
5. Which flag for the grep command specifies to match either upper- or lowercase?
-v
-a
-u
-i
6. To have a program read from a file instead of standard input, use which of these symbols?
>
<
|=
7. To display files on the standard output, use which command?
print
tell
cat
show
8. The default standard input for a program is
your printer
your mouse
your terminal keyboard
your terminal screen
9. By default, sort arranges lines of text
numerically
by modification date
alphabetically
10. The default standard output for a program is
your printer
your terminal keyboard
your terminal screen
your mouse
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