Need help to find out some command

[kaspareov]

Hello Everyone,

I need to find out some command which produce specific
output. My questions are as follow:

(1) List all users on system who use sh as the login shell.

(2) Using lastcomm command find how many times you have used the touch command in the current month. (The command should
work for any user without any modification)

(3) Please use one grep command to list all lines that contain a digit (0,1, …, or 9) as the first character, dot (.) as the third last
character, and a dollar sign ($) as the last character in a file named info.

(4) List all userids, which are currently logged on to system,
(a) with at least five characters

(b) with at most six characters

(c) with exactly six characters

(d) whose first and fourth characters are s and o,
respectively.

(5) Create an alias named listdotfile to list all hidden files in long format from the working directory. All hidden
directories should not be part of the output.

Is anyone can help me?

Thanking You,

[Irithori]

Hello and welcome.

Sorry, but homework questions are against the forum rules.

[kaspareov]

At least I am expecting some hint or somthing to workout.

[oz]

Hello and welcome to the forums!

Sorry, but as indicated above, homework questions are not permitted:

http://www.linuxforums.org/forum/lin...ums-rules.html

However, if you are having some specific issue with Linux, we might be able to help with that if you can post details and any error messages that you are receiving.

Note that you can find a listing of Linux commands here:

http://oreilly.com/linux/command-directory/

Otherwise, googling for answers to homework questions might work.

Good luck to you with your classes.