Question

Programs/scripts 13. Write a bash shell script that displays the date by using the shell command date. 14. Write a command line program that takes a number and a command as arguments. Call that command that number of times. For example, if your program name is "test" test 3 dir <shows directory> dir <shows directory> dir <shows directory>

Answer 1

13)

The command is $date

Command execution screenshots:

R script.sh (-/Desktop) - gedit Open - save : script.shx date

ubu@ubuntu:-/Desktops bash script.sh Sat Feb 15 21:31:41 PST 2020 ubu@ubuntu:-/Desktop$ 1

14)

Shell script:

count="$1" #storing first parameter
cmd="$2" #storing second parameter
while [ $count -ne 0 ] #running in a loop
do
eval "$cmd" #executing the command
count=`expr $count - 1`
done

Screenshots:

O test.sh (-/Desktop) - gedit Open - Save Undo E test.sh count="$1" #storing first parameter cmd="$2" #storing second parameter while [ $count -neo] #running in a loop do eval "$cmd" #executing the command count='expr $count - 19 done

ubu@ubuntu:-/Desktop bash test.sh 3 date Sat Feb 15 21:55:29 PST 2020 Sat Feb 15 21:55:29 PST 2020 Sat Feb 15 21:55:30 PST 2020 ubu@ubuntu:-/Desktop

unixPasswd ubu@ubuntu:-/Desktop bash test.sh 3 dir 1.sh- files.tar Sample.txt test.sh compress.tar.gz hi script.sh- test.sh 1.sh- files.tar Sample.txt test.sh compress.tar.gz hi script.sh- test.sh 1.sh- files.tar Sample.txt test.sh compress.tar.gz hi script.sh- test.sh- unixPasswd unixPasswd