How to read user keyboard input inside the case? Post: 302728477

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Homework and Emergencies Homework & Coursework Questions How to read user keyboard input inside the case? Post 302728477 by femchi on Thursday 8th of November 2012 02:13:36 AM

11-08-2012

Registered User

how should I apply this part to the script?

The “Delete files or directories” selection should prompt for a list of files or directories to be deleted. The script asks user for confirmation before deleting a file or a whole directory. The script must perform reasonable argument validation.

I tried to read the list of files and directories in a string but it is pretty hard to split the string based on space and put them in an array and then check them one by one and delete them. Also I was thinking to run a while loop to ask user to enter the name of file and then delete it and again repeat the job but it is not a nice way.
would you give me some clue?

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 "$opt" in
		1) echo "Enter the source of the files and destination for copying "
                   read src dest
                if [ -n "$src" -a -n "$dest" ]
		then
			if [ -d "$src" -o -f "$src" -a -d "$dest" ]
			then
			cp -r "$src" "$dest"
			else
			echo "Enter the valid file or directory addresses" 
			fi
		else
		echo "please enter valid address as a source and destination to copy the files "
			fi ;;
		2) echo "enter the name of files want to be deleted"
		read files
		for f in "$files"
		do
		echo "$f\n"
		done  
		 ;;

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


		*) exit ;; 
	esac
done

---------- Post updated at 02:13 AM ---------- Previous update was at 12:50 AM ----------

Code:

2) echo "enter the name of files want to be deleted"
		read a
		
	for CHARACTER in $a ; do
	  if [ -f $CHARACTER -o -d $CHARACTER ] ; then
		rm -ir $CHARACTER
	else
	echo "$CHARACTER is not a valid file or directory"
	fi
	done
		 ;;

femchi

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LEARN ABOUT DEBIAN

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.

SEE ALSO

       cgconfigparser(1)

Linux								    2009-10-23								CGCLEAR(1)

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