How to read user keyboard input inside the case? Post: 302728369

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Homework and Emergencies Homework & Coursework Questions How to read user keyboard input inside the case? Post 302728369 by femchi on Wednesday 7th of November 2012 05:29:40 PM

11-07-2012

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How to read user keyboard input inside the case?

I need to Write a shell script that allows some system-administration tasks to be preformed automatically from a menu-driven interface. with automated following tasks:

Copy directory tree
Delete files or directories
Output Information (this part is done )

*Copy directory tree
The �Copy directory tree� selection should prompt for two arguments: src & dest.
The script then copies all the files from src, including all the subdirectories, to dest,
creating all the necessary sub-directories.
The script must perform necessary argument validation, assuming that the first argument may be either a directory name or the name of a regular file, while the second may be only a directory name.

my problem with this assignment is I can not read user input inside the "case" options.
I think I need to ask user to enter src and dest for copying the files.

this is my code so far

Code:

#!/bin/sh
clear
	echo "\t `date "+%d/%m/%Y"`"
	echo "\t Hostname Machine: `hostname`"
	echo "\t user: `whoami` "
	echo "\t M A I N - M E N U"
	echo "\t 1.Copey Directory Tree"
	echo "\t 2.Delete Files or Directories"
	echo "\t 3.Output Information"
while true ; do
	echo -n "\t Please enter an option [ 1 - 4 ] : "
	read opt

	case "$opt" in
		1) echo "Enter the source and destination for copying files" ;; 
		
		#read src dest ;;
		#echo "$src" ;;
		#echo "$dest" ;;

		2)  ;;

		3) echo "\t the number of possible users on the system: `cat /etc/passwd |wc -l` \n\t the number of current user on the system : `who | wc -l`\n\t the number of processes running: `ps -e | wc -l`"  ;;


		*) exit ;; 
	esac
done

Langara College , Vancouver , Canada , Hengameh Hamavand , CPSC 1280

femchi

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LEARN ABOUT CENTOS

cgclear

CGCLEAR(1)							 libcgroup Manual							CGCLEAR(1)

NAME

       cgclear - unload the cgroup filesystem

SYNOPSIS

       cgclear [-e] [-l <filename>] [-L <directory>] [...]

DESCRIPTION

       Without	parameters,  this  command  moves all the tasks inside the various cgroups to the root cgroup, deletes all the cgroups and finally
       unmounts the cgroup filesystem from the system.

       If one or more config files are specified, only groups defined in the config files are removed. The files are processed in  reverse  order,
       i.e. the last file on command line is processed first, so cgclear can have the same command line arguments as appropriate cgconfigparser.

       -l, --load=<filename>
	      specifies the config file to read. This option can be used multiple times and can be mixed with -L option.

       -L, --load-directory=<directory>
	      specifies  the  directory,  which is searched for configuration files. All files in this directory will be processed in alphabetical
	      order as they were specified by -l option. This option can be used multiple times and can be mixed with -l option.

       -e     specifies that only empty groups should be removed. If a group defined in a config file has tasks inside or has a subgroup, it won't
	      be removed. This option works only with -l or -L options.

ENVIRONMENT VARIABLES

       CGROUP_LOGLEVEL
	      controls verbosity of the tool. Allowed values are DEBUG, INFO, WARNING or ERROR.

SEE ALSO

       cgconfigparser(1)

Linux								    2009-10-23								CGCLEAR(1)

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