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Full Discussion: shell script that will automatically check if specifed user is log in or not, in 30 seconds
Top Forums Shell Programming and Scripting shell script that will automatically check if specifed user is log in or not, in 30 seconds Post 302375178 by gurmad on Thursday 26th of November 2009 08:54:14 PM
Old 11-26-2009
shell script that will automatically check if specifed user is log in or not, in 30 seconds
guys I need emergency help with below shell script assignment..am new to shell script

Write a Shell script to automatically check that a specified user is logged in to the
computer.
The program should allow the person running the script to specify the name of the
user to be checked, the frequency in seconds at which the script should check. If a
checking frequency is not specified, it should default to 60 seconds
The script should check for the specified user and if found should output a message
with a “beep” or “bell” sound to the screen stating that the user is logged in. It should
also output a message to a log file stating that the user is logged in and specifying the
date and time.
If the user is not logged in the script should output a message without any “beep”
sound to the screen stating that the user is not logged in.
The script should allow a person running the script to specify the user name on the
command line and optionally, a check frequency in seconds and a third argument “q”
“q” . If “q” is present as a third argument, The script should omit any output to the
screen or “beep” sound but should log to a log file the message stating that the user is
logged in and giving the time.
The command to run the script would be as follows:
checklogin username 30 q where “checklogin” is the script name, “username” is the
name of the user, “30” is the optional frequency to check in seconds, and “q” is the
optional argument to suppress screen output.
The script should check that the number of arguments supplied is between 1 and 3 and
if it is not, should terminate with an error message showing the correct syntax for the
command.
You will be required to make a demonstration in the lab on how your program is
working. You will be required to produce a printed copy of your shell on the same
day. After your demonstration , make a directory in your home directory called
“assignment” and copy your shell script program to it. Give your program a unique
name beginning with your username ‘usernamelinuxshell' Your name, student
number and course you are taking must appear at the top of your program. It is
important to make sure that the program is fully documented.
 

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LEARN ABOUT DEBIAN

merge_fonts

merge_fonts(3alleg4)						  Allegro manual					      merge_fonts(3alleg4)

NAME

       merge_fonts - Merges two fonts into one font. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       FONT *merge_fonts(FONT *f1, FONT *f2)

DESCRIPTION

       This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you
       cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can  promote  a  mono-
       chrome bitmapped font to a color font and merge those. Example:

	  FONT *myfont;
	  FONT *myfancy_font;
	  FONT *lower_range;
	  FONT *upper_range;
	  FONT *capitals;
	  FONT *combined_font;
	  FONT *tempfont;
	  ...
	  /* Create a font that contains the capitals from  */
	  /* the fancy font but other characters from myfont */
	  lower_range = extract_font_range(myfont, -1, 'A'-1);
	  upper_range = extract_font_range(myfont, 'Z'+1, -1);
	  capitals = extract_font_range(myfancy_font, 'A', 'Z');

	  tempfont = merge_fonts(lower_range, capitals);
	  combined_font = merge_fonts(tempfont, upper_range);

	  /* Clean up temporary fonts */
	  destroy_font(lower_range);
	  destroy_font(upper_range);
	  destroy_font(capitals);
	  destroy_font(tempfont);

RETURN VALUE

       Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it
       to avoid memory leaks.

SEE ALSO

       extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4)

Allegro 							   version 4.4.2					      merge_fonts(3alleg4)
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