Question
1. Write the command to set the following permissions on a script file with the following name; myscript.sh Owner: full access; read, write and execute
1. Write the command to set the following permissions on a script file with the following name; myscript.sh
Owner: full access; read, write and execute Group: read and execute Other: no access
2. Create a new file with the name "myfirstscript.sh". Write a new script that performs the following tasks in sequence;
- Display the usernames of currently logged in users; sorted from a-z
- HINT: You will need to filter the output of the whocommand
- Display a list of usernames who are logged into the system more than once
- HINT: usernames that are logged in more than once = not 'unique'
- Display a list of usernames that have been logged in since yesterday
Also, provide the commands to;
- Set read and execute permission for the user and member of the users group; read-only permission for others; and write permission for the user only
- Run your script from its stored directory
Note: The output of your script must be self-explanatory. For example, the output for the users who are currently logged into the system must be preceded by a header like this: List of users who are currently logged in to the system in alphabetical order
3. Write a script that performs the following actions;
Define the following two variables with the provided values; variable lab with value lab? variable labs with value lab* Display the value of lab and labs Define a variable named price with a value of 84.5 Define a variable named sentence and use the price variable to set its value to "The price of the book is $84.5"
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