Bash Scripting introduction

What is the significance of $#?

• Shows the Process ID of the current script.

• Shows the count of the arguments passed to the script.

• Shows the end status of the last process to execute.

• Returns the current line number of the script.

If funny.sh is in your current directory, how do you run it?

• ./funny.sh

• None of the alternatives

• bash funny.sh

• funny.sh

What is the significance of $?

• It gives more details about the ? command

• It shows Variable $

• It gives the exit status of the last command that was executed.

• It is used with echo to show the current status of the echo command

What is the significance of this line "#! /bin/bash"

• Is used on top of a script file to determine the output of the script

• Instructs the user not to use /bin/bash

• Determines the location of the engine which is to be used to execute the script

• Its used to make the script look prettier

Which command shows if /usr/bin is in the current shell search path?

• cat PATH

• echo $PATH

• echo %PATH

• cat $PATH

• echo %PATH%

How is it possible to determine if an executable file is a shell script which is read by Bash?

• The r bit is set.

• The file must end with .sh.

• The first line starts with #!/bin/bash.

• /bin/bash has to be run in debug mode.

• Scripts are never executable files.

Which of the following statements may be used to access the second command line argument to a script?

• "$ARG2"

• $1

• "$2"

• "$1"

• '$2'

What keyword is missing from the following segment of the shell script?

for i in *

_____

cat $i

done

• do

• then

• enod

• fi

• run

What is the output of the following script?

for token in a b c

do

echo -n "$token";

done

• anbncn

• abc

• $token$token$token

• a

  b

  c

• a b c

What keyword is used in a bash script to begin a loop?

• elif

• else

• for

• if