Lab - Command Line Arguements and Read Inputs

Take me to Practice Test

Solutions to the practice test - Command Line Arguments and Read Inputs

Check the answer file at /tmp/assets/create-and-launch-rocket-answer

bob@caleston-lp10:~$ cat create-and-launch-rocket
mission_name=$1
mkdir $mission_name

rocket-add $mission_name

rocket-start-power $mission_name
rocket-internal-power $mission_name
rocket-start-sequence $mission_name
rocket-start-engine $mission_name
rocket-lift-off $mission_name

rocket-status $mission_name

Run the script

``` $ bash print-capital.sh ```

Check the answer file at /tmp/assets/print-capital-answer.sh

bob@caleston-lp10:~$ cat print-capital.sh
echo "Capital city of $1 is $2"

Check the answer file at /tmp/assets/backup-file-answer.sh

bob@caleston-lp10:~$ cat backup-file.sh
# This script creates a backup of a given file by creating a copy as bkp
# For example some-file is backed up as some-file_bkp
set -e

file_name=$1

cp $file_name ${file_name}_bkp

echo "Done"
bob@caleston-lp10:~$

cat the script file and check the command-line arguments such as $1, $2
There is a syntax issue in which the arguments are used for the usermod command. Fix it.
```
new_shell=$2
user_name=$1

useradd -s $new_shell $user_name
```